
To view the details of the online abstract book, you will need to register for a visitor ticket.
▼Transportation used when visiting
University campus parking is unavailable. Please refrain from driving microbuses and similar vehicles onto campus. If you are using a microbus, please disembark in the vicinity of the campus and then proceed to the venue.
Regarding lunch
Please bring your own lunch, or plan to eat at the cafeteria or nearby restaurants.
[Cafeteria] Rinkukan, 2nd Floor, Dining Hall Dinoa (Hours: 10:00 a.m.–4:00 p.m.)
Cafeteria Maphttps://www.kandai.ne.jp/map/index.html#map01

Oral and poster presenters, please be sure to check the presenter manual.
Science Castle started in 2012 as a gateway for future researchers. While its initial focus was to provide presentation opportunities for junior and senior high school students, its role has evolved in recent years with the expansion of inquiry-based learning in schools and the increase in junior and senior high school students conducting advanced research independently. In response to these changes, we now offer more than just a platform for presentations; we create opportunities for connection with society through collaboration with companies and universities, encounters with peers who are researchers, and the acquisition of advice and support to advance research to the next stage.
The 2026 season will be held in the Philippines in January and in Malaysia/Singapore in April, with the Asian Games scheduled for August and the World Tournament for December. As part of this initiative, Science Castle Japan 2026 will bring together selected junior and senior high school researchers from across the country to create a platform for them to gain hints for the next research cycle through presentations and interactions with companies. Through this event, we aim to support the challenges of each next-generation researcher and further expand the possibilities of research.

Educational Development Division, Leave a Nest Co.
Science Castle Japan 2026
Leader Ayano Yoshikawa
April 29, 2026: Information for oral and poster presenters posted.
May 18, 2026 - Information for oral presentation judges posted.
May 20, 2026 Partner Company Information Posted.
May 28, 2026 Special Feature/Booth Information Posted. Access Information Posted.
*Timetable is subject to change on the day of the event.
| Venue | Program |
| 9:00 | Doors open and registration begins |
| 9:30 | opening ceremony |
| 9:50 | keynote speech |
| 10:15 | oral presentation |
| 13:15 | lunch break |
| 14:00 | Poster Presentations (first half, odd numbers) |
| 15:00 | Poster Presentations (second half, even numbers) |
| 16:00 | special project |
| 17:00 | Awards Ceremony and Closing Ceremony |
| 18:00 | closure (of a ceremony, event, meeting, etc.) |
Please register here if you wish to attend on the day. (Free of charge)
Team members other than the principal investigator (presenter), supervisors, school officials, guardians, and other general attendees require admission tickets. The secretariat will issue admission QR codes to oral and poster presenters before the conference.
Please use public transportation to come to the venue. Also, please refrain from bringing microbuses or similar vehicles onto campus. If you are using a microbus, please disembark in the vicinity of the campus and come to the venue.
Access
Exit Hankyu Railway Senri Line at "Kandai-mae" Station and enter through the South Gate of the campus, which is located immediately to the southeast of the station. Ascend the stairs or escalator from the South Gate, and you will arrive directly in front of the venue building. (Reference:Campus Map・Building 46 (100th Anniversary Hall)


Developmental research of a novel ingestible and chewable treat based on the analysis of feline swallowing and mastication

Noise reduction in fans using propellers that mimic dragonfly wings

The effects of plant hormones on the growth of Euglena

Clarification of temperature characteristics due to phase transition of thymolphthalein crystals

The Effects of Homemade Biochar on Plants and Its Application in Combating Desertification

Is gas produced from the thermal decomposition of wood by sunlight combustible?

Research on soil improvement using ants

Prospects for Disaster Response Technologies Triggered by the Noto Peninsula Earthquake

Development Research on AI to Support the Overview of Negative Emotions through Asynchronicity

Aerodynamic Performance Evaluation of Undulating Wings by Lift-Drag Ratio and Airflow Visualization

Addressing Rwanda's Water Challenges Through the Development of Fog-Collecting Water Systems

Reactivity and Stability of Methionine-Selective Modification Reagents
| Poster number | Title/Theme | identity | belong to |
| B-001 | Elucidation of survival strategies of *Nostoc commune* under low phosphorus stress | Ichihōho | Showa Gakuin High School |
| B-002 | An Exploration of the Cycle of Receiving Life: The Structure of the Jaw and the Utilization of Skin | Ainosuke Okamoto | Sumida Ward Municipal Kinshi Junior High School |
| B-003 | Quantitative analysis of the effect of changes in microbial load on the phagocytic activity of cricket hemocytes | Yamashita Natsuyo | Senri International High School of Kwansei Gakuin |
| B-004 | Habitat survey of the Japanese fire-bellied newt in Hyogo Prefecture | Yamabata Aoi-ko | Takigawa Gakuen Takigawa Junior High School |
| B-005 | Towards the conservation and regeneration of *Epipactis thunbergii* in Ariake-hama | Shun Yamamoto | Kagawa Prefectural Kanonji Daiichi High School |
| B-006 | Can Sake Lees Save the Ocean? ~The Challenge of "Circular Purification Beans"~ | Kanda Fumiya | Kobe Municipal High School of Science and Technology |
| B-007 | Ecological Study of *Rhinogobius ryukyuensis* in the Ishikawa River, Yamato River Basin | Sugito Keita | Osaka Prefectural Tondabayashi High School |
| B-008 | Dyeing flowers using food-derived pigments | Kana Sugiyama | Fukui Prefectural Wakasa High School |
| B-009 | Exploration of microorganisms that affect aquatic plant growth | Ayane Nishimura | Kagawa Prefectural Kanonji Daiichi High School |
| B-010 | The effect of spent shiitake mushroom substrate on plant germination. | Ootani Kōga | Fukui Prefectural Wakasa High School |
| B-011 | Verification of the antibacterial activity of Japanese ginger and the coloring effect of dragon fruit | Chihiro Iizuka | Tokiwamatsu Gakuen High School |
| B-012 | The symbiotic relationship between Paramecium bursaria and Chlorella | Fukui Gaishi | Nishiyamato Gakuen High School |
| B-013 | Verification of food preference and decoy effect in slime mold | Riku Saito | Seishin Gakuen High School |
| B-014 | Insect Observation Log: Life in Settsu City, Osaka Prefecture from Spring to Autumn | Sotaro Shintani | Settsu Municipal First Junior High School |
| B-015 | The Effect of Diet Type on the Sensory Properties of Mealworms | Seiya Yamamoto | Fukui Prefectural Wakasa High School |
| B-016 | Why Does "Understanding Without Being Understood" Happen? The Science of Thought Translation | Evert Aguri | Nagoya Junior High School Attached to Aichi University of Education |
| B-017 | Can pill bugs become a new research model for "pain"? | Ryoko Akutagawa | Seishin Girls' High School |
| B-018 | Does stress reduction lead to improved memory? | Umeda Shiori | Nara Women's University Secondary School |
| B-019 | Sea slug regeneration | Ena Urano | Salesian International Academy Junior High School |
| B-020 | Detection of food spoilage by chemiluminescence of luminol | Aoyama Yuta | Ritsumeikan Trust Ritsumeikan Junior High School |
| B-021 | Make dye-sensitized solar cells more eco-friendly | Eternal, forever | Meisei Junior High School |
| B-022 | Ethanol concentration measurement using cobalt chloride | Tomoyoshi Nakanishi | Nanyo High School |
| B-023 | Disaster reduction effects and optimization of high-wave protective structures through simulation | Shogo Nakata | Nishiyamato Gakuen High School |
| B-024 | Revitalization of the tourism industry in Kagawa Prefecture | Ryo Shirakawa | Kagawa Prefectural Kannonji Daiichi High School |
| B-025 | Optimization of quantitative methods for vitamin C changes associated with plasma treatment | Aina Fukunaga | Minoh Jiyu Gakuen High School |
| B-026 | How a defensive table tennis player can beat an offensive player | Soichiro Noda | Kagawa Prefectural Kanonji Daiichi High School |
| B-027 | Evaluation of Stable Rotational Properties of a Gyro Generator Based on Input Vibration Changes | Dehongguang咲 | Nishiyamato Gakuen Junior & Senior High School |
| B-028 | Changes in biotite upon heating, including potassium ion dissolution | Ryoma Haruta | Yokohama Science Frontier High School Junior High School |
| B-029 | Let's try to make a white flame with a flame test. | Sara Nishihata | Jōshō Gakuen Junior High School |
| B-030 | Rice flour blend ratio for realizing rice flour bread that doesn't harden easily | Mizuki Oshita | Fukui Prefectural Wakasa High School |
| B-031 | Computer Simulation of Underwater Mystery Circles IV | Kosuke Oishi | Hamamatsu Junior High School Attached to Shizuoka University Faculty of Education |
| B-032 | Comparison of the effects of particle size and molding method on chalk | Risana Nakayama | Fukui Prefectural Wakasa High School |
| B-033 | Analysis of shock absorption mechanisms using the dilatancy phenomenon | Mayu Nakagami | Takatsuki High School |
| B-034 | Mathematical organization and algorithms for seating arrangements | Taguchi Ryusho | Tokushima Prefectural Wakimachi High School |
| B-035 | Regularity in the binary representation of n-th Collatz numbers | Hatakeyama Kōdai | Tochigi Prefectural Utsunomiya Higashi High School |
| B-036 | Verification of melanin production inhibitory effect using potatoes | Saki Takebe | Fukui Prefectural Wakasa High School |
| B-037 | Contribution of liquid phase conditions to photocatalyst use in aqueous systems | Miyu Suzuki | Sakuragaoka High School |
| B-038 | On the values of the Riemann zeta function at positive odd integers | Chen Yi-hsuan | Osaka Kyoiku University Senior High School Ikeda |
| B-039 | Theoretical Design of Nutrient-Supplying Biodegradable Mulch | Kamegawa Kousei | Showa Gakuin High School |
| B-040 | How to prevent tape from curling when peeled off | Sojiro Ishikawa | Okayama Prefectural Kurashiki Amagi High School |
| B-041 | Investigation into the Transparency and Application of Biodegradable Casein Plastic | Daimon Aimi | Sakuragaoka High School |
| B-042 | Weeding with coffee grounds | Yurina Tsutsumi | Nishiyamato Gakuen High School |
| B-043 | Differences in how easily dust is collected depending on the angle of the dustpan | Tahara Sakuraumi | Fukui Prefectural Wakasa High School |
| B-044 | Development of a five-fingered magic hand for elderly life assistance | Sae Fujii | Nara Gakuen Tomigaoka Junior High School |
| B-045 | Strongest yogurt | red feather | Kobe Municipal High School of Science and Technology |
| B-046 | Structural Factors of Gender Gap in US-Japan Startups | Kohara Mai | Ichikawa High School |
| B-047 | I want to reduce bicycle accidents among high school students. | Sota Izawa | Kawaguchi City High School |
| B-048 | World's crop waste to SAYA, a new material derived from peas | Arisa Nagasawa | Hiroo Gakuen High School |

Leave-it, Inc. Education Research Center, Director
Doctor of Science

Asahi Beverages Co., Ltd. Senior Managing Executive Officer, Head of Research and Development, and Head of Quality Assurance
Master of Agriculture

Itoen, Ltd. Central Research Institute, Director
Master (Engineering)

Kansai University, Faculty of Engineering Science, Department of Mechanical Engineering, Professor
Doctor of Engineering

Hiroshima Institute of Technology
Vice President / Professor, Department of Electrical and Systems Engineering, Faculty of Engineering
Doctor of Engineering
A senior researcher who continues to take on challenges not only in university research but also in venture companies will be a guest speaker. This keynote lecture will provide an opportunity to think about your own research and future, by touching upon their real experiences of how connecting with different fields changes the way you view research and society.

Masato Ueda
Professor, Faculty of Chemistry and Biotechnology, Kansai University
Title: From Regenerative Medicine to Coral Reefs: Research Expands by Changing Perspectives
Lecture Content: Even with the same research, changing the perspective can lead to unexpected expansions. This lecture will introduce my own research, which applies regenerative medicine engineering technology to coral reef regeneration, as an example of how exploring research in different fields has greatly broadened my own research possibilities. By not being confined to one's usual specialization and incorporating perspectives and knowledge from other fields, new ideas and connections to society can emerge. I hope this will serve as an opportunity for junior and senior high school students to consider how far their own research can expand, while being mindful of interdisciplinary connections.
This society brings together junior high and high school students from across the country who are tackling research, where they present their findings. It also provides opportunities to meet various academic and corporate partners and deepen mutual learning. As part of these opportunities, we will be holding three special sessions this fiscal year. These sessions are packed with opportunities for students to take a step into the world of research, such as science experiment classes and idea generation workshops for thinking about the future. We highly encourage you to participate.
<Hours
4:00 PM - 5:00 PM
Conference Room 1Create the ultimate shiny dorodango with the power of polishing!
Planning Partner: Mypox Co.
Subject: Students
Polishing the surface of a Dorodango makes the fine clay particles align and reflect light in a certain direction, making it appear shiny and bright. Polycrystalline, soft, and spherical Dorodango is a very difficult material to polish, and in the Mipox X Challenge Program, participants will try their hand at making Dorodango by combining the skills cultivated by Mipox, a professional polisher, with the creative ideas of the participants. In a special program, participants will be able to experience the world of polishing, which is actually an active part of our daily lives, and also try their hand at polishing dorodango.
First 30 people
Second Conference RoomSpace Experiment Lab for Junior and Senior High School Students is Born! Let's Start Researching in Space!
Planning Partner: Space Gnome Research Institute Co., Ltd.
Subject: Students
If you could conduct experiments freely in space, what would you want to research? A 50-minute session exploring research themes unique to space, touching upon a cutting-edge lensless microscope scheduled for launch into space at the end of 2027. Learn from researchers' real-world perspectives and envision "future space experiments" together with your peers!
First 30 people
Main Venue:How to Utilize Leave us to Accelerate Research for Junior and Senior High School Students
Planning Partner: Riverness Inc.
Target: Students and teachers
This academic society brings together junior and senior high school students from all over the country to present their research. It also provides opportunities to meet partners from various academic institutions and companies, and to deepen mutual learning. As part of these opportunities, this year we will be holding 9 booth events. Please stop by during the poster presentation sessions!
14:00-16:00
*This is the same time as the poster presentation.
E-01:Let's start research that will create future excitement and smiles with Asahi Soft Drinks!
Planning Partner: Asahi Soft Drinks Co.
Target: Students and teachers
Asahi Drinks supports junior and senior high school students who create future excitement and smiles! We are advancing research that combines deliciousness and health through the power of science and new ideas born daily in beverage development. At this booth, we will introduce research on the recently revealed effects of highly carbonated water! Let's explore the new possibilities that expand from "drinking" while experiencing the science behind highly carbonated water!
E-02:Circulate, Deliver, Green Flow: Let's Think About Tea Research to Connect to the Future
Planning Partner: ITO EN CO.
Target: Students and teachers
Tea is not just a drink for a moment of relaxation. Through the ingenuity in how it is grown and prepared, the spirit of hospitality, and the culture of appreciating the seasons, it has nurtured the Japanese heart and wisdom since ancient times.
Why don't you explore that world of tea for yourself?
In the Reiwa era, let's build a "culture of research" together with Ito En's "Oi Ocha," where we can enjoyably learn about tea, discover new possibilities, and create new value.
E-03:The "Imabari Shipbuilding Umi-Tomo Ship Project" Co-Creating the Future of the Maritime Industry with the Next Generation
Planning Partner: Imabari Shipbuilding Co.
Target: Students and teachers
Maritime transport accounts for 99.61% of Japan’s trade volume, and this is supported by the maritime industry, including shipbuilding, marine equipment manufacturing, and shipping.Imabari Shipbuilding launched the “Umitomo Ship Project” to co-create the future of the maritime industry with the next generation. In collaboration with Lifeness, the company developed an inquiry-based program titled “The Ultimate Shipbuilding! Mega Container Ship Challenge,” which involves building a 700mm-long model ship. At this booth, we will introduce the science and educational materials featured in the program.
E-04:Welcome to the world of space research. We're seeking your research x space ideas!
Planning Partner: Space Gnome Research Institute Co., Ltd.
Target: Students and teachers
Space Gnome Laboratory will launch a miniature experimental unit equipped with a cutting-edge lensless microscope into space in 2027! We are currently seeking the next generation of researchers to collaborate with us using this experimental unit. What world-first discoveries can be made with your research x space? Won't you join us in planning experiments? We look forward to your many ideas!
E-05:Making things: Step zero, half a step, or even 0.1 of a step.
Planning Partner: THK Corporation
Target: Students and teachers
Monozukuri 0. (Zero Dot) encourages junior high and high school students to "try making it" and fosters a spirit of creativity by using everyday questions and challenges as starting points. It's a framework that connects beginners to advanced makers. At the THK booth, you can experience smooth linear motion technology and learn how to bring your own ideas to life through the development process for the "Monozukuri 0. THK Award."
E06:Let's create the future of Move with your research.
Planning Partner: Otis Elevator Company Japan, Ltd.
Target: Students and teachers
To enable people to live healthy and fulfilling lives, it is important to remove obstacles in "mobility." However, many challenges exist in achieving this. Otis, a global leader in elevators and escalators, holds an annual contest where students from around the world devise solutions to "mobility" challenges. At our booth, we will explore "What kind of future moves can we create?" based on your research themes and ideas.
E-07:Challenge the study of the sea!! Marine Challenge Program!
Planning Partner: Japan Advanced Science and Technology Education and Human Resources Research and Development Organization
Target: Students and teachers
The Marine Challenge Program supports teenagers who take on any research related to the sea and aquatic environments. This year marks our 10th anniversary, and many junior and senior high school students have tackled research projects! We welcome those who don't yet have a research topic and those who want to expand their research further! We'll introduce research ideas tailored to your interests and curiosities, and you can collect stickers by visiting recommended posters that will accelerate your research! Please share your interest in the ocean!
E-08:The "Mipox X Challenge Program" to foster the ability to connect with unknown worlds.
Planning Partner: Mypox Co.
Target: Students and teachers
In the Mipox X Challenge Program, Mipox, experts in polishing, and the creative ideas of participants will combine, as Mipox employees and junior high and high school students challenge themselves to automate the production of mud dumplings. At our booth, we will exhibit early robots and other equipment that have been improved during the program.
E-09:Accelerate your research with Science Castle research funding!
Planning Partner: Riverness Inc.
Subject:
The Science Castle Research Grant is a research grant program that supports junior and senior high school students in their desire to "research more!" At this booth, in addition to introducing the research grant, you can consult about research themes, how to use the grant, and how to apply. Why not take the first step with us to advance your research while connecting with researchers from companies and universities? If you want to connect your research to your next challenge, please stop by.