Abstracts of the presentation themes for the 2014 Tokyo Conference are now available.

• Tokyo Conference Oral Presentations
• Tokyo Conference Poster Presentation
• Kansai Conference Oral Presentation
• Kansai Conference Poster Presentation

Science Castle is looking for middle and high school students and teachers who wish to attend the presentations. Not only can you attend the presentations listed below, but you can also communicate directly with the junior high and high school students and teachers involved in the research. Please apply for participation below.
https://s-castle.com/join.html

*Presentation times are subject to change.

Tokyo Conference Poster Presentation Theme Abstract List

Biology research using integrated learning time ( Bunkyo University Junior and Senior High School )

In the third year of high school, students research and present their research for their career path. Students who wish to pursue a career in the biological sciences are asked to conduct one research project of their own interest. Students experience what it is like to conduct research by planning, preparing, conducting, reporting, and presenting an experiment. I am not sure how much they will be able to accomplish with only one hour a week, but I hope that they will have some idea of what research is all about. [/box] [box color="lgray"]

The Secret of Sound from a Bottle ( Yuri Honjo Municipal Dewa Junior High School Science Club )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Study and Promotion of Culture Media Composition by Mycorrhizal Cultivation of Jew's ear fungus ( Microorganism Utilization Research Group, Agriculture Club, Hiratsuka Agricultural High School, Kanagawa Prefecture )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Comparative Study of Neutral Detergents for Greasy Stains and Addition of Limonene ( Food Science Team, Hiratsuka Agricultural High School, Kanagawa Prefecture )

A comparative study was conducted on the removal of stains from animal fat produced by cooking using commercially available neutral detergents. The results show that limonene was extracted from citrus fruits and added to the detergent, and the effect was remarkable. [/box] [box color="lgray"]

Effects of cosmic radiation and gamma rays on plant growth ( Hiratsuka Agricultural High School )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Observation of shooting stars by FM radio observation and its application to earthquake prediction ( Urayasu High School attached to Tokai University )

My research interests are meteor shower observation and earthquake prediction. I have been working on meteor showers for the past few years, aiming to change the number of meteors by visual observation and photography. Last year, my research was adopted by JST's Science Club Activity Promotion Program for Junior and Senior High School Students. In addition to the existing meteor observation, we are planning to obtain various data by FM radio wave observation and apply them to earthquake prediction and meteor observation. Currently, we are studying the directivity of the antenna, data acquisition, recording, and analysis methods with the aim of installing the antenna on the roof of our school. In parallel with this, we will observe the Perseid meteor shower for 4 days and 3 nights during the summer vacation, and we still have some time left until December, so we would like to make the best of it. [/box] [box color="lgray"]

Topography and Geology of Jogashima, Miura Peninsula ( SPP High School Group, Tokyo Metropolitan Hakuo Senior High School )

The Science Partnership Program (SPP) took us to Jōgashima Island at the tip of the Miura Peninsula to observe and measure in detail the various sedimentary structures, faults, folds, etc. in the distinct strata that were deposited on the sea floor during the Neogene period, as seen in the erosion platforms. The results show that the strata forming Jōgashima are inverted within a narrow area. This can be assumed to be the result of violent crustal deformation caused by plate movement. We will present the evidence we were able to confirm, etc. [/box] [box color="lgray"]

Terrace topography of Jogashima, Miura Peninsula ( SPP Junior High School Group C, Junior High School attached to Tokyo Metropolitan Hakuo Senior High School )

Continuing on from the previous year, SPP visited Jōgashima Island at the tip of the Miura Peninsula to observe and survey the coastal terraces that can be seen on the sea-facing sea cliffs. These terraces are generally about 1 m in height, and are thought to have been formed by the 1923 Taisho Kanto Earthquake and the 1703 Genroku Kanto Earthquake. On the other hand, three-tiered coastal terraces with larger steps of 10 to 20 m or more are widely distributed on the Miura Peninsula. These terraces are thought to have been formed by sea-level changes and continuous uplift movements associated with climatic changes. The causes of the formation of these two types of coastal terrace landforms are often confused in textbooks and other literature. [/box] [box color="lgray"]

Study of Biodiversity around Us - Lotus Pond Comprehensive Survey (Interim Report) - ( Shonan Gakuen Junior & Senior High School Science Research Club )

The Science Research Department has decided to conduct activities and research to help conserve biodiversity in the Shonan area, where the school is located, for three years starting in the 2014 school year. One of the main activities is to survey the environment and biota of Lotus Pond and to exterminate the floating plant Azolla cristata (aquatic fern), a specified alien species that has bred in this pond, in cooperation with a citizen's group. In this first year of the project, we started with long-term monitoring of water quality by continuing to conduct water quality surveys. Once a week, we measure water temperature, pH, chlorophyll concentration, transparency, and electrical conductivity. We also examined daily changes in these parameters. In addition, we are learning about Azolla cristata and how to get rid of it. [/box] [box color="lgray"]

Amariyama Soil Environment Survey II ( Yamanashi Prefectural Nirasaki Senior High School, Environmental Science Club )

We have been investigating the soil environment since 2013 with the aim of clarifying the relationship between the soil environment and the decline of Rhododendron pseudochrysanthum on Mt. Soil samples were collected around the 20th of each month. Eight soil samples were collected at Mt. Amari and four samples were collected at four sites in Nirasaki City for comparison and control. From August of this year, the depth of soil sampling was standardized to 30 cm, the depth at which the roots of Renge-tsutsuji (Rhododendron macrosepalum) grow. The surveys were conducted for water retention, pH, cellulose-degrading bacteria counts, and phosphoric acid concentration. The results of the above surveys showed the relationship between pH and phosphate concentration, and the relationship between cellulose-degrading bacteria and temperature. Soil sampling for this year is scheduled to continue until November. [/box] [box color="lgray"]

The Birth of Strawberries Grown in Saitama Prefecture! ( Eito Junior & Senior High School Gardening Club )

Since last year, students have been learning about strawberry breeding at the Saitama Prefectural Agriculture and Forestry Research Center's Horticulture Research Institute as part of the SPP course. They are learning about methods of breeding and efforts to commercialize strawberries.
This year, we are growing strawberries from seed at our school. We plan to compare the characteristics of leaf color, leaf irregularity, gloss, the shape of the base of the apical lobes, and the shape of the serrations among the seedlings grown, as well as to directly compare them with the parent variety, Yayoihime plants. We will also compare leaf characteristics and other characteristics with other varieties registered as cultivars to examine genetic characteristics. [/box] [box color="lgray"]

Influence of Sound on Seed Germination ( Tsuru Senior High School, Yamanashi, 2nd year, Biochemistry Club )

Germination rates increased when soybean seeds were exposed to music. The study investigated what changes occur under specific frequencies and intensities of sound. [/box] [box color="lgray"]

Self-digestion of planaria Part 2 ( Tsuru High School, Yamanashi, 2nd year, Biochemistry Club )

Observations of planaria self-digestion by amputation and death were made to further investigate the mechanism of self-digestion and to devise methods to inhibit self-digestion. [/box] [box color="lgray"]

Observation Event for Elementary School Students ( Tokyo Metropolitan Hakuo Senior High School Astronomy Club )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Effect of Nitrogen Atom in Maillard Reaction ( Chemistry Club, Ibaraki Prefectural Mito Daiichi High School )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Recording of electromyograms of insects and observation of their nervous system ( Chemistry Club, Numazu Higashi Senior High School, Shizuoka, Japan )

Compared to vertebrates, invertebrates use a nervous system consisting of a smaller number of neurons to carry out their behaviors. To understand how the nervous system of insects, a familiar invertebrate, works, we took out the nervous systems of various insects, observed their brains, and measured electromyograms. Here, we report on our preparations for electromyogram recording and a summary of the dissection of the nervous system that we have conducted so far this year. [/box] [box color="lgray"]

Why the root end of garlic splits at 10:30 ( Aizu Gakuho Junior & Senior High School, Fukushima, SSH Exploration Division, Split Group )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Research on Genetically Modified Soybeans: How Much We Are Eating ( Fukushima Prefectural Aizu Gakuho Junior & Senior High School SSH Exploration Club, Soybean Group )

News of mislabeling of food products has been in the news for some time now, and interest in food safety has been growing. Recently, I read some literature on the health hazards caused by genetically modified foods and became curious about how many genetically modified foods are around us. Therefore, we conducted a survey on soybeans, focusing on processed foods. This time, we investigated Le01 as RRS and control, using the DNeasy mericon Food kit for extraction and purification, followed by PCR and electrophoresis to confirm the bands. As a result, genetically modified soybeans were detected in 4 out of 36 samples including tofu, soy milk, and prepared foods. Since Japan's self-sufficiency rate for soybeans is 8%, and in the U.S., a major importer of soybeans, 91% of cultivated soybeans are GM soybeans, the possibility of GM soybeans in food products was considered high, and this was the subject of the survey. [/box] [box color="lgray"]

Protecting lunch boxes from mold ( Chiba Prefectural Kamagaya Nishi High School Science Club )

I have left my lunch box from every long vacation and decided to investigate, wondering about the different mold growth in winter and summer, and in different places where it was left unattended.
<Research Methods

1. Bread was placed in various locations around the school to determine which environments were unsuitable for mold growth.
2. We investigated the possibility of preventing mold growth by applying a seasoning that is known to have antimicrobial properties.

.

• Mold was less likely to grow in warehouses with good ventilation, low foot traffic, and relatively cool temperatures.
• Wasabi, mustard, vinegar, and other traditional preservatives were found to be effective.
• Vinegar was found to have more antibacterial power than wasabi.

Changes in basalt due to repeated wetting and drying of water ( Planet Science Club, Kamata Junior High School, Ota-ku, Tokyo )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Approaching the Moon's Brightness like a Bon Festival ( Lifelong Learning Center Heartopia Anpachi (Observatory) Heartopia Anpachi Junior Astronomy Club )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Analysis of Nitrate-N in Spring Water in Gunma Prefecture ( Gunma Prefectural Takasaki Girls High School, Biology Department, Water Quality Research Team )

Water samples were taken from springs on the mountainside of Mt. Akagi, rivers with the Ashio Mountains as their water source, and springs at the fan end of the Watase River fan area. The concentration of nitrate nitrogen in the water was measured by the salicyl sulfate method and compared according to elevation. The data after October is still under analysis, but the August data showed that the spring water in the lower elevation area contained nitrate-nitrogen, while the spring water in the higher elevation area contained nitrate-nitrogen. The data for August showed that springs at lower elevations contained nitrate-nitrogen, while those at higher elevations contained nitrate-nitrogen in the vicinity of livestock farms and other facilities. [/box] [box color="lgray"]

Light Conditions and the Growth of Paramecium ( Microorganism Group, Biology Department, Gunma Prefectural Takasaki Girls High School )

To investigate the effects of light and dark changes on the cell cycle of elephant bugs, dark boxes were produced to create dark conditions and to study the growth of elephant bugs. The culture medium was 100 ml of commercially available bottled tea drink, and the food was about one drop of liquid Calorie Mate every 10 days. The culture containers were placed in a thermostatic incubator set at 25°C under long-day conditions, one with the culture containers in place and the other in a dark box, and a fixed volume was removed every three days to measure the number of caterpillars contained in the containers. The results were positive, with no significant differences between the two, but the data are currently being examined closely. [/box] [box color="lgray"]

Investigation into methods of preventing apple browning ( Science club, Kamagaya Nishi Senior High School, Chiba Prefecture )

There is a method for slowing down the browning rate of apples by soaking them in salt water, but I wanted to find another way to slow down the browning rate, so I experimented. This time, we experimented by soaking apples in aqueous solutions of different pH.
<Research Methods

1. Cut apples with a knife into squares 0.5 cm thick and 2 cm on each side to make a solution of different pH.
2. Soak the apples in each reagent and check on them every 30 minutes to examine the RGB of the apple's color. (In this case, the less B in the RGB, the more browning is observed.)

＜Browning was observed in the browned samples, and B was reduced by the RGB method. The most browning was prevented at pH 1. The most browning was observed at pH 14. [/box] [box color="lgray"]

Generation of Perfume from Fresh Flowers ( Science Club, Kamagaya Nishi High School, Chiba Prefecture )

I researched to see if it would be possible to make perfume easily.
method

1. Put finely chopped flower petals and hot water at 45°C in a beaker, covered and steamed for 30 minutes.
2. In a triangular flask, finely chopped flower petals and anhydrous ethanol were placed for 24 hours.

Result: 1 showed both color and fragrance, but soon became moldy; 2 had a strong ethanol odor, and when dried on filter paper, it had a sweet fragrance characteristic of flowers.
Discussion: 1 had no sterilizing ability and mold grew; 2 did not grow mold with ethanol, but the strong smell of ethanol canceled out the fragrance. The reason for the fragrance on the filter paper is thought to be that the ethanol evaporated and only the flower fragrance remained on the filter paper. [/box] [box color="lgray"]

Measurement of Air Pollution ( Gunma Takasaki Girls High School, Biology Department, Air Pollution Measurement Team )

Nitrogen oxides were measured in Takasaki City, Numata City, Kiryu City, and Shimonita Town. Ethylenediamine was soaked in filter paper and placed in film cases, and nitrogen oxides were adsorbed for 24 hours. The collected film cases were extracted with a certain amount of water, colored with Salzmann's reagent, and measured using an absorption spectrophotometer. From the measurements, the concentration of nitrogen oxides in the air was determined and compared among the sites. Furthermore, we compared whether there were differences between days of the week and between seasons within the same location, and analyzed the results based on wind speed and wind power data from POTEKA NET. [/box] [box color="lgray"]

Research on Inclusion Compounds ( Chemistry Club, Ibaraki Prefectural Midorioka Senior High School )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Influence of Sound on Plants ( Sano Nihon University Senior High School, Special Preparatory Course, Advanced Activity, Biology Group )

Based on the study of the effects of music on plants conducted by Dorothy Rialak in 1968 and the experimental report by Mihaya Shibahara et al. in 2005, we examined the biological effects of music and plants using rice plants whose genomes have been analyzed based on the studies of our seniors to date. The results showed that different types of music had different effects on plants. Next, the differences in musicality were analyzed by focusing on the frequency distribution in the music, and the differences in the effects of high and low frequencies were analyzed, suggesting that they are related to sugar metabolism and protein concentration in the seeds. In the future, we would like to continue the experiment based on the previous experiments and investigate what kind of differences are produced by oxygen concentration, amylase activity, and the loudness of the sound. [/box] [box color="lgray"]

Why Plants Secret Acid Phosphatase ( 2nd year student, Biology Research Club, Nirasaki High School, Yamanashi )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Can we use Drosophila melanogaster as a natural test tube?

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Making Carrots from Carrots! Plant tissue culture experiment! ( Keiai Gakuen High School Science Research Club )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Is there a difference in the behavioral activity of Drosophila melanogaster ( 1st year student, Biology Research Club, Yamanashi Prefectural Nirasaki High School )

Previous studies have shown that Drosophila melanogaster aggregates well in blue light. We thought that the factor that causes aggregation might be influenced not only by light but also by the behavioral activity of different fly strains, so we established a measurement method and conducted actual measurements. Flies were placed in rearing bottles, and the number of times they passed the center line in 30 seconds was measured using three strains: OR, cryb, and cryb norp. The results showed that OR and cryb moved equally well vertically and horizontally, but only upward due to negative gravitropism, which was not what I expected. cryb norp moved more slowly than the others. This may be due to differences in genes and proteins. I am now using motion capture to track their behavior. [/box] [box color="lgray"]

Properties of Wild Yeast Isolated from Grapes and Alcohol Fermentation Using Acorns ( Hiratsuka Agricultural High School, Kanagawa Prefectural Agricultural Club, Microorganism Utilization Research Group )

We succeeded in isolating wild yeast from grapes through a project research class. After testing the yeast for its chemical potential, we tested its alcohol fermentation ability as one of the ways to use the yeast. Acorns found on campus were used as a raw material for alcohol fermentation. [/box] [box color="lgray"]

Where are the powerful biodegradable plastic-degrading bacteria? ( Keiai Gakuen High School Science Research Club, Biodegradable Plastic Group )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Whereabouts of Memory of Planaria ( Keiai Gakuen High School Science Research Club )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Increase and Eat Euglena ( Keiai Gakuen High School Science Research Club )

In recent years, as various environmental issues such as the depletion of gas resources due to global warming and food problems have become hot topics, Euglena, which can be used as jet fuel and food, has been attracting particular attention among algae. We are currently working to establish a method for mass cultivation of Euglena that can be done by high school students and its use in food processing. From the results of our research to date, we have found that the Hyponex 0.25% medium is particularly easy to increase. Therefore, in this experiment, glucose was added to the culture medium of Hyponex 0.25% as a sugar and the pH optimal for the growth of euglena was adjusted with acetic acid in order to conduct a more efficient mass culture in a shorter period of time. The cultured euglena will be used for food processing in the future. [/box] [box color="lgray"]

Development of New Environmental Materials to Protect Production Areas from High Summer Temperatures ( Agricultural Club of Shizuoka Prefectural Fugakukan High School )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

The dragonfly you don't know ( Kumon International School Junior & Senior High School Biology Club )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

To what extent does ethylene make bean sprouts thicker? ( Keiai Gakuen High School Science Research Club )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Application of Hearing Aid Technology to Earphones ( Hiroo Gakuen High School Volunteers )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Distribution Survey of Aizu Earthworms and Correlation between Earthworms and Water-resistant Dumplings ( Aizu Gakuho Junior & Senior High School, Fukushima SSH Exploratory Team, Earthworm Group )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Study on the stress response of protoplasmic flux in the giant water duck ( Freshman, Science Club Biology Group, Kato Gakuen Gyoshu Junior High School, Core Course )

Many plants deliver vital substances to the body through intracellular protoplasmic flux. I have discovered that when the stress of amputation is applied to the Canada spiderwort, this protoplasmic flux is temporarily halted. I also found that chloroplasts localize to a single intracellular site. The day after the stress is applied, protoplasmic flow is restored and chloroplast localization is resolved.
This finding is thought to be a plant stress response. It is very curious as to what causes them to stop protoplasmic flow and collect chloroplasts in one place when stressed. It has been reported that some plants gather chloroplasts around the nucleus when stressed. In the future, we would like to further investigate this phenomenon by changing the way stress is applied. [/box] [box color="lgray"]

Genetic Disturbance in Aizu Medaka: Protect Local Medaka ( Medaka Group, Aizu Gakuho Junior & Senior High School SSH Exploration Division, Fukushima Prefectural Aizu Gakuho Junior & Senior High School )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Creating a natural herbicide ( Biology Club, Ibaraki Prefectural Hokota Daini High School )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Hokoni Water Purification Project ( Ibaraki Prefectural Hokota Daini High School Biology Club )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

The longest thermometer in Bunkyo-ku, Tokyo ( Bunkyo Gakuin University Girls' Senior High School Thermometer Group )

I created a thermometer that can measure air temperature by utilizing the property of thermal expansion of metal, which causes the wire to expand and contract depending on the temperature, and confirmed its effectiveness. I made the thermometer using about 65 meters of aluminum wire. By lengthening the aluminum wire, the length of expansion and contraction of the aluminum wire at 1°C increased, making it easier to see the expansion and contraction of the aluminum wire. The thermometer was made by fixing one end of the aluminum wire to a wall in the schoolyard, passing the other end through a pulley, attaching a weight, and defining the temperature by the expansion and contraction of the aluminum wire. Experimental data were taken in summer and winter, when temperature changes were different, and compared with the mathematical model of this thermometer, which showed good agreement. Therefore, I concluded that my thermometer can measure temperature as well as a real thermometer. [/box] [box color="lgray"]

Multi-step increase in velocity due to air resistance ( Bunkyo Gakuin University Girls' Senior High School, Science and Mathematics Class, 3rd Grade - Kinokinoppi )

We examined the change in velocity of an object falling in a straight line due to air resistance before reaching its terminal velocity. First, objects were dropped from various heights, and the change in velocity per 0.05 second was graphed, and a stepwise increase in velocity was found before the terminal velocity was reached. Therefore, we named this phenomenon "multi-step increase in velocity due to air resistance. Next, to define this phenomenon in more detail, we considered the changes in falling velocity per various time scales. We found that the number of stepwise increases in velocity depended on the shape of the object used in the experiment and the time scale considered. In the future, we will create a mathematical model to describe the change in velocity of the dropped object and compare it to the experimental data. [/box] [box color="lgray"]

Taste Magic Show by Devil's Leaf and Miracle Fruit ( 2nd year volunteer of Science and Mathematics Class, Bunkyo Gakuin University Girls' Senior High School )

Gymnema tea and miracle fruit have taste-altering effects. Gymnema tea contains gymnemic acid. Gymnemic acid has the effect of reducing the perception of sweetness. Miracle fruits contain the glycoprotein miraculin. Miraculin has the effect of making sour taste seem sweet. In this study, we focused on these two effects and investigated their effects when consumed at the same time. As a result, the strength and mechanism of the binding force between miraculin, gymnemic acid, and taste buds were clarified. Furthermore, we investigated the possibility of effects other than those currently known. As a result, we discovered a new effect of Gymnema tea. Using this effect, taste changes in foods were investigated. [/box] [box color="lgray"]

Differences in Energy Converted by Size, Shape and Material of Feathers ( 1st year students of Advanced Science Course, Bunkyo Gakuin University Girls Junior High School )

We wanted to know about the differences in wind energy converted by the size, shape, and material of the wings. The reason for this is that we were interested in this topic when we were elementary school students, and we wanted to learn more about it after conducting an experiment as a free research project during our summer vacation. The feathers that were light, windproof, and could catch the wind well were the best at making the LED bulbs stick to the motor. Therefore, we found that such feathers can produce a lot of energy. I would like to compile the results of the voltage measurement as well as the lighting method in the future. [/box] [box color="lgray"]

The effect of condiments ( Taisei High School Science Club )

It is said that condiments have antibacterial and bactericidal effects. Some bacteria are bad for the body, while others are good. We wondered if condiments could sterilize bad bacteria, but could they also sterilize good bacteria. We decided to focus our attention on this and study the specific phenomenon. We chose wasabi, mustard, and ginger for our experiment. [/box] [box color="lgray"]

The Art of Saving Goldfish ( Tokyo University of Agriculture First High School, Biology Club )

Goldfish from goldfish scooping are thought to die quickly, but we conducted an experiment to find out if this is really the case. Preliminary experiments were conducted and a method was devised to easily keep goldfish without the use of an air pump. We then collected 100 individual goldfish and kept them for four weeks in various locations, and investigated their survival rate. [/box] [box color="lgray"]

Turtle habitat in the Ookashiwa River ( Ichikawa Gakuen Ichikawa Junior High School Biology Club )

Many Mississippi green turtles (green turtles) live in the Ookashi River that flows near the school. I wondered how many turtles there were in this river, and what would happen when the water rose due to rain, etc., because both banks were revetted with concrete, and conducted an investigation to see how the number of turtles would change. Turtles were more abundant in areas with sandy land. Also, after the typhoon in October, the number of turtles decreased significantly. Since there has been no recovery since then, it is assumed that the turtles have been washed downstream. We hope to clarify the future movements of these turtles in next spring's survey. [/box] [box color="lgray"]

Verification of the moisturizing and penetrating power of lotion ( Bunkyo Gakuin University Girls' Senior High School Team "Does lotion really moisturize?" ) )

We began our experiment with the question of whether the lotion we normally use really "penetrates" and "retains moisture," or whether it "evaporates. First, we conducted three experiments using water and three types of lotion (milky lotion, essence, and low-alcohol type) to determine whether or not they have the ability to penetrate and retain moisture. First, an experiment was conducted to compare the amount of evaporation, then fu was used to examine the penetration power of each, and finally a moisture checker was used to examine the moisturizing power. The serum-type lotion contained more alcohol, so it evaporated more easily, but the results verified that the lotion "penetrated and retained moisture. We are now changing the perspective and conducting an experiment to verify whether a jelly-type serum is "penetrating and moisturizing. [/box] [box color="lgray"]

Study on the Synthesis of Phthalocyanine by the Wyler Method ( Science Club, Rikkyo Ikebukuro High School )

Phthalocyanine is a blue-green functional dye that exhibits unique properties such as photocatalytic properties and insolubility. It is a substance closely related to our daily lives, used in the blue parts of bullet trains and on the backs of CD-ROMs. This study is a continuation of the research conducted by our students until last school year. Since it was found that phthalocyanine was not actually synthesized by that method, experiments were conducted under limited conditions in order to find out why it could not be synthesized. Although they were not able to synthesize phthalocyanine, they were able to obtain urea and Cu₂⁺and solvent TEOA and Cu⁺It was suggested that the reaction was inhibited by the formation of complexes by Currently, we are considering changing the reagent distribution and catalyst. [/box] [box color="lgray"]

Fabrication of Dye-Sensitized Solar Cells by Low-Temperature Firing ( Science Club, Rikkyo Ikebukuro High School )

Dye-sensitized solar cells are solar cells in which dyes are adsorbed on a titanium dioxide-based paste and used as electrodes. Normally, titanium dioxide paste is prepared using PVA, but in this research, the objective was to create a more efficient dye-sensitized solar cell by low-temperature firing with a paste using polysaccharides such as chitosan or without firing using agar as the paste. As a result of our research so far, we have found that agar is a more suitable material for the paste than chitosan. However, the current obtained from the dye-sensitized solar cells using the agar paste is still low, so we would like to improve it by changing the electrolyte used and improving the precision of the experiments. [/box] [box color="lgray"]

Measurement of oscillation period of BZ reaction ( Science Club, Rikkyo Ikebukuro High School )

At a cultural festival, an experiment was conducted in which the BZ reaction was mixed with an ammonia fountain. At that time, the period of oscillation of the solution raised by the fountain was different from that of the original solution. I thought that the acid/base reaction might be involved, so I conducted the experiment. As a preliminary step, I also measured the oscillation period when the solution was divided into smaller portions.　In the experiment, I measured the oscillation period by changing the concentration of BZ solution, temperature, and the method of dividing the BZ solution into smaller portions. In the pH-adjusted experiment, we examined the effect of tilting the solution toward a base. The results showed that a cloudy precipitation occurred and the solution did not oscillate. The oscillation period increased significantly when the pH was increased. [/box] [box color="lgray"]

Study on the extraction method of saponin using soap nuts ( Science Club, Rikkyo Ikebukuro High School )

I learned about saponin, a substance that exhibits surfactant activity, which is contained in a plant that was used as a substitute for soap in the past. My objective was to find the most efficient way to extract saponin from soap nuts using various solvents. The saponins were extracted from soap nuts using water and ethanol as solvents at different temperatures. Next, we checked whether the saponins could be extracted without any effect of the solvents. The results of the experiment showed that the most efficient way to extract saponin was to process soap nuts into powder form and extract them with ethanol. Soapnuts have been sold exclusively as laundry detergent, but now we know that they can also be used as kitchen detergent, as they remove oil stains. [/box] [box color="lgray"]

Fluorescence confirmation of CaS ( Rikkyo Ikebukuro High School Science Club )

To study the fluorescence of calcium sulfide, which can be produced by mixing calcium carbonate, sulfur and an activator and burning it in a hand burner. The changes seen in the fluorescence were observed by varying the conditions. Experiments were conducted by changing the amount of calcium carbonate and sulfur, the type and concentration of the reactant, and the container used for combustion. As a result, the greatest amount of fluorescence was observed when the molar ratio of calcium carbonate to sulfur was 1:1 without an activator. Also, a change in the color of fluorescence was observed by changing the reactant. No change in fluorescence was observed by changing the container used to contain the reagent during combustion. [/box] [box color="lgray"]

Formation of copper crystals by electrolysis ( Rikkyo Ikebukuro Junior High School Science Club )

Copper produced by electrolysis does not have luster. However, copper crystals with metallic luster can be deposited by electrolysis using copper(II) chloride hydrochloric acid solution. Therefore, the objective of this study was to precipitate copper crystals with luster. When electrolysis was performed using copper(II) chloride hydrochloric acid solution at different current values, the smaller the current value, the smaller the amount of copper precipitated, and the smaller the amount precipitated, the larger crystals with luster were observed. When electrolytic solutions were made by changing the concentration of hydrochloric acid in the copper(II) chloride hydrochloric acid solution and electrolysis was conducted with the current value kept constant, the amount of copper precipitated increased as the concentration of hydrochloric acid became higher. This is thought to be due to the effect of chloride ions. [/box] [box color="lgray"]

Making a manganese battery ( Rikkyo Ikebukuro Junior High School Science Club )

NH, the cathode compound in manganese batteries.₄Cl solution, MnO₂The voltage and current values were investigated by varying the ratio and concentration of activated carbon. Manganese batteries were prepared using cathode compound with varying material ratios and concentrations, and current and voltage values were measured simultaneously. The results obtained show that the NH₄Cl solution, MnO₂Although no change in current and voltage was observed when either activated carbon or NH₄It can be mentioned that if Cl is extremely reduced, no current/voltage is generated. Furthermore, it can be mentioned that current/voltage can occur even in the absence of manganese dioxide. This is because the activated carbon and NH₄Cl may play a role in reducing electrical resistance inside the battery. [/box] [box color="lgray"]

Fingerprinting by the Cyano Method ( Rikkyo Ikebukuro Junior High School Science Club )

The purpose of this experiment is to reduce the time required to collect fingerprints by the cyanide method as much as possible, and to obtain clearer and cleaner fingerprints. The experimental method consists of placing the specimen to be fingerprinted, a hot plate, and instant adhesive in a Styrofoam container, sealing the container, and heating the hot plate. In this experiment, the temperature of the hot plate and the amount of instant adhesive were adjusted. The results show that when the hot plate temperature is doubled, the time required to detect fingerprints is expected to be reduced by a factor of two. If the amount of adhesive is too small, the cyanoacrylate compound contained in the adhesive may not be enough to detect all the fingerprints. [/box] [box color="lgray"]

Rolling onion seeds after sowing decreases germination rate ( Science club, Sugito High School, Saitama Prefecture )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

Culture of diatoms collected from the Old Tone River (Saitama Prefectural Sugito High School Science Club)

We attempted to culture diatoms from pebbles collected from the Old Tone River that flows near our school using the following method, and succeeded in cultivating several species of diatoms. First, adhering material scrubbed off the surface of the pebbles with a toothbrush was diluted and then seeded on agar medium containing 0.11 TP3T hyponex and incubated in an artificial weather chamber (25°C). After about 2 weeks, diatom colonies were scraped from among the many colonies that appeared and transferred to agar medium containing 0.1% hyponex. After that, we continued to culture the diatoms successively on agar medium and also on liquid medium containing 0.1% hyponex, and we are now culturing several diatom species. In the future, we hope to identify the diatoms in culture and investigate these properties. [/box] [box color="lgray"]

Distribution survey of dandelions at Sagami Women's University ( Sagami Women's University Junior & Senior High School Science Department )

The Sagami Women's Science Department has been conducting an ongoing survey of the growth and distribution of non-native (walleye dandelion) and native (Kantou dandelion) species of dandelion using DNA analysis.
In 2014, the Sagami campus was divided into 33 plots and dandelions were sampled from each plot. DNA was extracted from dandelion leaves preserved in ethanol, and specific DNA fragments were amplified using the PCR method. The amplified dandelion DNA fragments were treated with restriction enzymes, and the patterns of characteristic DNA fragments of both dandelion and cantonese dandelion were examined. The results of this year's study will be added to the results of previous dandelion distribution surveys to discuss the distribution of dandelion growth. We will also report on the progress of tissue culture experiments for the purpose of preserving the dandelion.[/box] [box color="lgray"]

Do Bivalves Purify Water? ( 1st year students of Advanced Science Course, Bunkyo Gakuin University Girls Junior High School )

We looked to see if bivalves purify the water. The water in Tokyo Bay has been getting cleaner recently. It is said that shellfish absorb dirt, so we used bivalves to find out if this is true. First, we went to Kasai Rinkai Park to collect shellfish. Next, we added yeast bacteria to seawater and used it as a substitute for dirt. We put in the shellfish we took and observed them every hour. At first, the whole area was cloudy, but after an hour, the upper part became transparent. After another two hours, it became almost clear. The experiment showed that shellfish can clean water. In the future, I would like to dissect and investigate where the dirt from the shellfish is located. The shells we took from the sea for this experiment were returned to the original sea. [/box] [box color="lgray"]

Spurting carbonated water ( 1st year students of Advanced Science Course, Bunkyo Gakuin University Girls' Junior High School )

We conducted an experiment to see how the reaction of carbon dioxide released when mentos are added to carbonic acid, and how the reaction changes when the amount of mentos is changed. First, in order to quantify the reaction, we made a device in which a hole was drilled in the center of a PET bottle cap, and when a Mentos was added, water was spurted out from the hole. The time and height of the jet of water were recorded during the measurement. The expectation was that both time and height would increase as the amount of mentos was increased, but the results showed that the time became shorter and the height showed no regularity. The shorter time was probably due to the large amount of response at one time. We are still looking into the height and hope to find an answer as to what the cause is. [/box] [box color="lgray"]

The Color of Green Coffee Bean Extract ( 2nd Year Volunteer, Science and Mathematics Class, Bunkyo Gakuin University Girls' Senior High School )

Aqueous chlorogenic acid solutions turn green under basic conditions. Therefore, we investigated how the color of a light yellowish-green aqueous solution of boiled green coffee beans rich in chlorogenic acid changes when the pH condition is varied. The results showed that the solution was colorless at pH 1.0 to pH 8.0, green at pH 9.0 to pH 11, and yellow at pH 12 to pH 13. When acidic solution was added to the solution at pH 8.0-13 to further examine the reversibility of the color change, the color changed to red at pH 9.0-10 and to reddish brown at pH 12. The change to yellow can be assumed to be due to the reaction of sugars in the coffee beans in the aqueous solution with bases, etc. The cause of the change to reddish color is under investigation. The cause of the reddish-brown color change is still under investigation. [/box] [box color="lgray"]

Influence of the Sense of Touch on Appetite ( 2nd Year Volunteers, Science and Mathematics Class, Bunkyo Gakuin University Girls' Senior High School )

In a school class, a verification experiment was conducted on the influence of tactile sensation on appetite, using saliva volume as an indicator. The results showed that vision influences appetite. We wondered whether the sense of touch, which is not claimed to influence appetite in particular, also influences appetite. We asked the subjects, who were not allowed to use any senses other than touch as much as possible, to collect saliva while holding the materials, and examined whether there was any effect on appetite by comparing the mass of saliva from each of the materials. We hope to develop future experiments based on the results of this experiment. [/box] [box color="lgray"]

The Science of Carme Yaki ( St. Joseph's Junior & Senior High School, Natural Science Department, 1st year high school student )

We have been making kalumeyaki in a hands-on club for elementary school students, but sometimes we succeed and sometimes we fail. Aiming for a 100% success rate, we will scientifically investigate the causes of failure and tips for success. We are currently examining the amount of sugar and water, the difference between different types of sugar (caster sugar, coarse sugar, granulated sugar, and warm sugar), and temperature. I would like to explore the various reactions that produce carbon dioxide as well as carmelization. [/box] [box color="lgray"]

Astronomy Club Activity Report - Observation of Total Lunar Eclipse ( Tokyo Metropolitan Hibiya Senior High School Astronomy Club )

The Hibiya High School Astronomy Club focuses on winter training camps, planetarium showings at cultural festivals, and monthly nighttime observations. Last year, the club gave a poster presentation on the theme of ingenuity in planetarium creation and daytime observation of Comet ISON. Currently, there are nearly 50 members in the club, but we manage to do our best under the circumstances that many of them are also members of the club and the number of participating members changes from day to day. Although we could not observe the total lunar eclipse on October 8 due to the weather, we would like to present the images we obtained there. [/box] [box color="lgray"]

Variation of Velocity with Position of Load ( 2nd year student of Physical Chemistry Club, Nirasaki High School, Yamanashi, Japan )

When freight wagons are loaded and transported by locomotives and other vehicles, the speed varies depending on the position and method of loading. The question of how to make locomotives run faster led to this research. Using five plastic rail cars (the first one was equipped with a motor, and the last four were converted freight cars) and weights, we ran the cars 10 times over a fixed distance on three different tracks (straight, curved, and sloping) and measured the times. When the average of the times was taken, the result was that the first car was slowest when the weight was placed on the first car, and the second and later cars were fastest when the weight was placed on the second and later cars. This may be related to changes in the position of the center of gravity and friction. [/box] [box color="lgray"]

Propulsive Force Varying with the Shape of the Tail Fin ( 2nd year student of Physics and Chemistry Club, Nirasaki Senior High School, Yamanashi )

What is the best tail fin for a model ship with a tail fin? In this experiment, we will examine the shape of the tail fin that can proceed faster by averaging the running speeds of various tail fins.
As a result, we considered that if there is curvature and the size of the tail fin is the same, the curvature of the tail fin misses the amount of water that would normally be scratched by that size, resulting in a slower tail fin. Also, since the tail fin with a larger curvature is faster, we thought that there is a certain ratio between the size of the curvature and the length and width of the tail fin, and that if this ratio is satisfied, a faster tail fin can be produced. [/box] [box color="lgray"]

Esther Aroma and one-pot dishes ( Kaetsu Ariake High School Volunteers )

In chemistry class, we learned that the aromas of various fruits are esters. Therefore, we hypothesized that adding cooking sake to nabe or simmered dishes is the synthesis of esters. By synthesizing and combining various esters, we would like to artificially synthesize fruit aromas and eventually synthesize esters of higher fatty acids and ethanol to create artificial stewing aromas. The goal is to add long-cooked aromas to instant foods. [/box] [box color="lgray"]

Research on Bioreactor ( Yamanashi Prefectural Nirasaki High School, Environmental Science Department )

We have tried and succeeded in constructing a system in which starch is broken down by a bioreactor and the resulting glucose is used for alcohol fermentation. We are currently working to improve its efficiency. We also got the idea to change the substrate from starch to cellulose, so we conducted experiments aiming to "construct an alcohol fermentation system using cellulose," and created cellulase beads that break down cellulose. Starch is a source of energy for humans, and using it as a substrate would compete with human food. However, by changing the substrate to cellulose, we thought that we could use waste products as an energy source if we could extract the substrate from waste paper and other materials. [/box] [box color="lgray"]

Measurement of antimicrobial effect of natural essential oils using paper discs ( Yamamura Gakuen Yamamura International High School, Biology Club )

The motivation for this research is that natural essential oils are aromatic components extracted from plants. Therefore, we thought (hypothesized) that aromatic components would have antimicrobial effects, and began research on their antimicrobial effects.
Six pairs of 10 natural essential oils were selected based on their fragrance expression and aromatic components. Commercially available antimicrobial sprays were also included as controls. The antibacterial effect was measured by the paper disk method, which was improved for quantification, and compared with other samples based on the inhibition circle that inhibited the growth of Bacillus subtilis natto on the agar medium.
The antimicrobial effect of natural essential oils was related to the characteristics of the functional groups and aromatic notes (volatility) of the aromatic components. The spray made with natural essential oil was superior to the antimicrobial effect of commercial disinfectant sprays. [/box] [box color="lgray"]

Measurement of Antibacterial Effects of Natural Foods on Food Poisoning Bacteria ( Yamamura Gakuen Yamamura International High School, Biology Club )

Please check the abstracts on the Oral Presentations page.[/box] [box color="lgray"]

How to Preserve Green Salad ( Yamamura Gakuen Yamamura International High School, Biology Club )

≪Motivation for the study≫ Salads are easily damaged during the summer. Therefore, we thought of a preservation method for salads placed in the classroom during summer supplementary classes to be eaten at lunch time without worry. ≪Research Method≫My senior researcher used vinegar in his antimicrobial study, but this was too acidic and tasteless. Therefore, taking a hint from the antimicrobial action of citric acid (hypothesis), this time lemon juice (an antimicrobial ingredient) was sprinkled on the salad and studied under the storage conditions of 28°C and 6°C. ≪Results and Discussion≫If the salad was sprinkled with at least 2 mL of lemon juice, the growth of bacterial colonies was suppressed at 28°C (assumed classroom conditions) as well as at 6°C (assumed refrigerator conditions). However, no first-year club members have yet eaten the fresh, warm salad. We are currently developing an antimicrobial dressing that will reduce this raw-warmth effect. [/box] [box color="lgray"]

Hydrogen Water - Basic Research ( Tsuru High School Biochemistry Club, Tsuru High School, Yamanashi Prefectural Tsuru High School )

Hydrogen water has been attracting a lot of attention recently. The Lourdes Fountain in France and the waters of Nordenau in Germany have been called miracle waters, and it is said that drinking these waters has improved various diseases, and recent studies have shown that these waters contain a lot of hydrogen. Against this background, various companies have launched hydrogen water products. So we asked ourselves: in stick-type products, can the hydrogen concentration be maintained until the expiration date? How much hydrogen concentration can be maintained in pouch-type products? We are examining how much concentration can be achieved by each company's hydrogen water products. [/box] [box color="lgray"]

Proteolytic enzymes ( Tsuru High School, Yamanashi Prefectural Tsuru High School, Biological Chemistry Club )

Protein is a necessary nutrient for muscle building. Proteins are composed of numerous amino acids by peptide bonds. In the body, proteins are broken down into amino acids, which are used to produce muscle. This experiment was conducted based on the idea that by converting protein into amino acids and orally ingesting them in one's daily diet, the breakdown process in the body can be eliminated, leading to an increase in muscle production. In addition, the teaching that "adding pineapple to sweet-and-sour pork makes the meat more tender" really holds true! is really true. [/box] [box color="lgray"]

On the Color and Hardness of Glass ( Tsuru High School Biochemistry Club, Tsuru High School, Yamanashi Prefectural Tsuru High School )

My motivation for the experiment was my interest in the various colors of Ryukyu glass. Various colors are obtained by mixing inorganic substances and plant ashes with silicon dioxide and borax. Copper(II) chloride gave blue, cobalt(II) chloride gave indigo, and manganese(IV) oxide gave reddish purple. In plants, ferns gave an ochre color when mixed with ferns, and silver grass gave a dark brown color when mixed with silver grass. [/box] [box color="lgray"]

Cairo ( Tsuru High School Biological Chemistry Club, Tsuru High School, Yamanashi Prefectural Tsuru High School )

The reusable body warmer used around us in the winter suddenly begins to coagulate from the liquid just by giving it a shock. Seeing this, I wondered what was in the liquid and why coagulation occurs. I wondered about these things and decided to conduct research. Using sodium acetate dihydrate as a reagent, I created simple body warmers at various concentrations and measured their heating value. In the future, I plan to find the right temperature for a body warmer and study the persistence of heat. [/box] [box color="lgray"]

Dye-sensitized Solar Cells ( Tsuru High School, Yamanashi Prefectural Tsuru High School, Biological Chemistry Club )

At a time when nuclear power generation is being viewed as a problem, I wondered if there was a good way to generate electricity that was safe and environmentally friendly. I decided to research dye-sensitized solar cells, which have been the focus of much attention in recent years, because I was interested in solar cells that can generate electricity by using dyes. Dye-sensitized solar cells are a type of solar cell that converts light energy into electrical energy. Light passes through a transparent glass plate or plastic sheet, which allows electricity to pass through, and is absorbed by a dye adsorbed on titanium dioxide, which converts the energy into electricity. Compared to silicon solar cells, these cells have higher sensitivity and can be used in a variety of environments. In addition, the cells can be manufactured using inexpensive materials, making them a low-cost option for solar cells. [/box] [box color="lgray"]

Research on water environment and diatoms ( Science Department, Tokyo Kasei University Junior High School for Girls )

The Science Department conducts ongoing research on diatoms and water quality in all water bodies.
This year, we have increased the number of survey sites to 10 to broaden the scope of comparisons and are also exploring new sampling methods.
NH in places closely associated with human life or in closed areas.₄and PO₄and other contaminants were detected. As for diatoms, large-sized ones were found to be conspicuous and many of the same species were found. In comparison, many smaller ones were found in relatively clean areas.
The river snails, which are famous for being fed by firefly larvae, are known to feed on diatoms in the water. Diatom samples were found to be efficiently and cleanly recovered from the feces of the river snails. [/box] [box color="lgray"]

Biotope Committee Activity Report ( Biotope Committee, Tokyo Kasei University Junior High School for Girls )

The Biotope Committee is working to protect the school's natural environment while learning about the importance of the environment at large and promoting these activities to as many students as possible. Our activities won a prize in the Japan Ecological Society's "School Garden and School Biotope Competition" (held every other year) last year. Unfortunately, however, this year we had to refrain from outdoor work and research activities such as weeding and pond cleaning due to concerns about dengue fever.
In this presentation, we will report on activities planned and conducted in the spring, including "nature observation," "mosquito research" in response to dengue fever, "making dried persimmons" from the school's persimmon harvest, "cicada shell research" now in its sixth year, "breeding tadpoles and caterpillars," "making insect specimens," and The group will also report on their research on four-leaf clovers. [/box] [box color="lgray"]

How does the regeneration rate of red-bellied newts change depending on the growth environment? ( Yamagata Prefectural Tsuruoka Minami High School, Individual )

I have kept about 70 red-bellied newts at home since I was 5 years old. When I was in elementary school, I became interested in newts because of their regenerative abilities. Red-bellied newts are very remarkable creatures that can regenerate not only their limbs, but also their brains and even parts of their hearts. In this study, I investigated whether the speed of newt regeneration depends on the temperature of the growing environment and the state of the fungus. In the temperature change experiment, I conducted experiments at 1°C, 20°C, 25°C, and 30°C. I found that the speed of regeneration varied depending on the temperature, with the speed of regeneration being fastest at 25°C. Next, I used yaws to change the state of the fungus, and found that the speed of regeneration was fastest at 25°C. Next, yogurt was administered to the rearing water to change the state of the bacteria. We expected that the speed of regeneration would be faster than that of no administration, but it became slower. The cause is thought to be pH. In the future, we would like to see the effect of the bacteria alone. [/box] [box color="lgray"]

Find a new species of thermophilic bacteria in hot spring water! ( Discovery Institute Doctor Course )

There are many "extreme environments" on the earth that we humans have long thought would be inhospitable to life. These are places of cold, water pressure, high temperature, alkali, lack of air, lack of water, acidity, etc. The organisms that live in these places are called "extreme environment organisms. Studying extreme environment organisms reveals the limits at which living things can survive. At the same time, this leads us to explore the possibility of extraterrestrial life. Among extreme environment organisms, we have focused on thermophiles. Thermophiles are thought to hold the key to the birth of life, since the hydrothermal outlets where thermophiles are found have existed for 4 billion years. Therefore, this study aims to find new species of thermophilic bacteria in hot springs familiar to Japanese people. [/box] [box color="lgray"]

High school student researchers' challenge that transcends the boundaries of school! ( Volunteers, Livernace Science Department )

We report on our research activities utilizing the RIVANES lab. We are developing efficient and inexpensive DNA extraction methods from dandelion leaf tissue and constructing novel vectors to improve cell-free protein synthesis kits. We are also engaged in many challenging activities outside the laboratory to realize our respective goals. Based on their presentations at TEDxKids, an event to share "valuable ideas that should be spread," and their participation in the Agripreneur Grand Prix, a competition to discover "agripreneurs" who create businesses related to agriculture, forestry, and fisheries with new technologies and perspectives, we will introduce the lessons learned through their activities and future plans for their activities. We will introduce what we learned through our participation in the Agripreneur Grand Prix and our future plans. We hope you will join us in taking on this challenge. [/box] [box color="lgray"]

Beetle weighing ( Ichikawa Gakuen Ichikawa Junior High School Biology Club )

We have many beetles in our biology department, and while observing them we have noticed that there is a variation in size. Since the beetles do not grow after hatching, the factor that determines their size is thought to be during the larval stage. Therefore, we periodically measured the growth of larvae after hatching to examine the timing and factors that cause differences. Because larvae are curved, it is difficult to measure their body length. Therefore, we measured body weight and used that as an indicator of growth. [/box] [box color="lgray"]

Distribution of tardigrades and their natural environment ( Ichikawa Gakuen Ichikawa Junior High School Biology Club )

Tardigrades are microorganisms that become barrel-shaped and enter a dormant state when they become dry, and return to their original state of activity when they obtain water. In its barrel-shaped state, it is well known as the "strongest organism" that does not die even when exposed to high temperatures or radiation. Tardigrades are relatively easy to find in the mosses around us. The southern part of Ichikawa City, where our school is located, is urbanized and has little greenery, while the northern part has a relatively green environment with nature parks. We thought that this natural environment might affect the distribution of tardigrades, so we collected and identified mosses in the city, extracted microorganisms with a Behrman apparatus, and counted the number of tardigrades in them. The results showed that the number of tardigrades depends more on the type of moss than on the natural environment. [/box] [box color="lgray"]

What we can learn from lung anatomy ( Ichikawa Gakuen Ichikawa Junior High School Biology Club )

The surface area of the small intestine is said to be about the size of a tennis court, efficiently absorbing nutrients. It is said that the lungs also increase their surface area by creating alveoli at the end of the bronchi, but we wondered how much area they have, so we decided to measure it. We purchased pig lungs and injected silicone into the bronchi to make a mold of the bronchi, from which we attempted to measure the area of the alveoli. However, the silicone did not penetrate to the end of the bronchi, and we were unable to make a mold of the alveoli. Therefore, we calculated the area of the alveoli from the size of the alveoli measured at autopsy and the number of bronchioles molded with silicon. The poster will also present the autopsy. [/box] [box color="lgray"]

Study on Salt Tolerance of Brassica Plants 2 ( Brassica Group, Aizu Gakuho Junior & Senior High School SSH Exploration Division, Fukushima Prefectural Aizu Gakuho Junior & Senior High School )

Oilseed rape is easy to cultivate due to its short growing season, and yet there are many important edible varieties. Furthermore, since oilseed rape is characterized by its high salt tolerance, we began this research in the belief that it could be effectively grown in fields in salt-affected areas. This research was completed with an investigation of seedling elongation following the investigation of initial seed elongation completed last year. The hypothesis was that varieties with lower moisture content would be more resistant to salt. Five representative food varieties were grown in the study area with six levels of salinity, and the long diameter and width of the third and fourth leaves of the true leaves were recorded, and differences in elongation were compared to investigate salt tolerance. The results proved the correctness of the hypothesis. [/box] [box color="lgray"]

Are classroom CO2 levels safe?　(Itabashi Takashima Daiichi Junior High School Science Club )

In our school, carbon dioxide and oxygen levels as well as temperature and humidity in regular and special classrooms (audiovisual room) are measured once a month, every 10 minutes for 7 days. More than 30 students live in the classrooms. It is said that carbon dioxide levels of 1000ppm decrease the ability to think and concentrate, and levels above 2500ppm may be hazardous to health. During the measurement period, the number of hours in which these concentrations are exceeded is examined, and the results of each month's measurements are compared. The increase and decrease in carbon dioxide concentration per unit of time will also be examined and compared for each month. The results will be compared with those of oxygen concentration measurements, and correlations with indoor and outdoor temperature and humidity will be examined to analyze the relationship between environmental conditions and carbon dioxide concentration. We hope to use the results of our research to help create an optimal classroom environment.[/box] [box color="lgray"]

Please register as soon as possible!

If you find a topic that interests you, please come to the venue to attend the presentation. We would appreciate your cooperation in registering as early as possible in order to prepare the abstract book and other materials to be distributed on the day of the conference.
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