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September 2025

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2025年9月19日 / Last updated : 2025年9月19日 桑子 研 Science

Can You Crack This Equation? The Brilliant Code Hidden in MIT Chocolate

Hello, I’m Ken Kuwako, the Science Trainer. Every day is an experiment. Can you solve this equation? The incredibly clever code hidden in MIT’s chocolate A sudden challenge for you, science lovers! Can you crack the “code” written on this chocolate wrapper? This isn’t just any chocolate. My friend O from university showed it to […]

2025年9月18日 / Last updated : 2025年9月18日 桑子 研 Science

The Universe is So Vast It’ll Tire Your Fingers! What If the Moon Was Just One Pixel?

I’m Ken Kuwako, a Science Trainer, and for me, every day is an experiment! What if the Moon Was Just a Single Pixel? A Vast Solar System Journey at Your Fingertips! Have you ever seen a single, glowing “pixel” on your computer screen? That tiny dot holds the key to experiencing our magnificent solar system […]

2025年9月18日 / Last updated : 2025年9月18日 桑子 研 Science

Draw Snowflakes with Scratch! Create Stunning Fractals Using the “Magic of Self-Calling”

I’m Ken Kuwako, a Science Trainer, and for me, every day is an experiment! Snowflakes, jagged coastlines, and even the broccoli on your dinner plate. Do you know the “secret to their beauty” that they all share? It’s a fascinating property: a small part, when magnified, reveals a shape uncannily similar to the whole. This […]

2025年9月17日 / Last updated : 2025年9月17日 桑子 研 Science

Volcanic Ash Turns into Gems? Tips for a Sparkling “Bowl Sedimentation” Classroom Experiment

I’m Ken Kuwako, your science trainer. Every day is an experiment. Unearthing a Time Capsule from the Dirt! Observing volcanic ash can make students’ eyes light up. But just looking through a microscope won’t reveal the epic story hidden within each tiny particle. Many students think volcanic ash is just the residue of something that […]

2025年9月17日 / Last updated : 2025年10月13日 桑子 研 Science

We Built a Volcano—and It Was Explosively Fun! The Ultimate Experiment Recipe Using Plaster and Baking Soda!

I’m Ken Kuwako, a science trainer. Every day is an experiment. In a science class, the most fun part is always getting your hands dirty and “giving it a try.” There’s nothing more rewarding for us teachers than seeing the bright, sparkling eyes of our students and hearing them shout, “I get it!” Recently, I […]

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運営者:桑子研(くわこ けん)
科学の楽しさや不思議、感動を多くの人に届けていきたい。理科教師として勤務する傍ら、サイエンストレーナーとしてテレビ番組の科学監修・出演、実験教室、科学本執筆なども行っています。

Author: Ken Kuwako
I want to share the fun, wonder, and excitement of science with as many people as possible. In addition to my work as a science teacher, I also work as a "Science Trainer," providing scientific supervision for and appearing on TV programs, holding hands-on science workshops, and writing science books.

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