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2026年2月13日 / Last updated : 2026年2月13日 桑子 研 Science

Secrets of Static Electricity! Try This Cool Experiment with Styrofoam and Paper Bits (Dielectric Polarization)

I am Ken Kuwako, your science trainer. Every day is an experiment! 【This article is also available on my radio show!】 Imagine pulling objects toward you without even touching them. It sounds like a superpower straight out of a sci-fi movie, but it is actually a mysterious power we all know: static electricity! From that […]

2026年2月12日 / Last updated : 2026年2月12日 桑子 研 Science

Make It Snow in a Test Tube! Sparkling Crystal Christmas at Home (Ammonium Chloride Recrystallization Experiment)

I’m Ken Kuwako, your science trainer. Every day is an experiment! The holiday season is finally here! The streets are glowing with beautiful illuminations, and there’s a certain magic in the air. We’ve all paused at least once to admire the intricate frost patterns on a windowpane or the delicate snowflakes dancing down from the […]

2026年2月11日 / Last updated : 2026年2月11日 桑子 研 Science

Where Did the Electricity Go? Uncover the Emotional “V-Shaped Graph” of Neutralization! (Barium Hydroxide × Sulfuric Acid Experiment)

I’m Ken Kuwako, your Science Trainer. Every day is an experiment! Today, I want to introduce one of the most dramatic and visually satisfying experiments in the chemistry curriculum: the neutralization reaction between barium hydroxide and sulfuric acid. This isn’t just your average chemical reaction. It’s a fascinating process where you can actually watch ions […]

2026年2月10日 / Last updated : 2026年2月10日 桑子 研 Science

The Secret of Fizzy Reactions! Learn Chemical Changes with Citric Acid × Baking Soda (Endothermic Reaction)

I am Ken Kuwako, your Science Trainer. Every day is an experiment. 【Read this article in English】 That refreshing “fizz” the moment a Ramune soda touches your tongue. Or the way a bath bomb vigorously releases bubbles as it dissolves in the tub. These are more than just everyday moments; they are dramatic chemical reactions […]

2026年2月9日 / Last updated : 2026年2月9日 桑子 研 Science

Learn How Engines Work with a Shocking “Pop!” — The Secret of Alcohol Explosion Experiments (First Law of Thermodynamics)

I am Ken Kuwako, your Science Trainer. Every day is an experiment. Back to Special Page The “Pop!” That Opens the Door to Science: A Safe At-Home Thermodynamics Experiment 【This article is also available on Radio!】 There is something instinctively thrilling about seeing something launch right before your eyes. Have you ever looked at a […]

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運営: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。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
My mission is to share the joy, wonder, and excitement of science with as many people as possible. As a Science Trainer, I stay busy supervising and appearing on science-themed TV programs, hosting hands-on experiment workshops, and authoring science books.

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