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2025年10月22日 / Last updated : 2025年10月22日 桑子 研 Science

Snack Turns Into a Volcano!? Unleashing the Science of Eruption with Mentos and Coke!

Hi, I’m Ken Kuwako, your Science Trainer. Every day is an experiment! When we hear “volcanic eruption,” it often sounds like something from a distant world. But guess what? We can safely recreate a mini version of it using everyday items! For this experiment, we’ll be using Mentos and Coke—a classic snack time duo that […]

2025年10月21日 / Last updated : 2025年10月21日 桑子 研 Science

Mechanical Pencil Lead as Electrodes!? Track Chemical Changes with “Electrolysis of Copper(II) Chloride” (Eco-Friendly Microscale Experiment!)

I’m Kuwako Ken, your Science Trainer. Every Day is an Experiment. What comes to mind when you hear the phrase “science experiment”? Perhaps an image of beakers and flasks, with lots of seemingly complex chemicals. But actually, there’s a much simpler, more eco-friendly way to get to the core of science.This time, we’re featuring the […]

2025年10月21日 / Last updated : 2025年10月21日 桑子 研 Science

Just Rub with a Tissue! Learn the Science of Positive and Negative Static Electricity with a “Moving Straw”!

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. Do you ever feel that “zap!” of static electricity when you touch a doorknob in the winter? That little jolt running through your fingertip is a familiar phenomenon that often happens when the air is dry. The truth is, that “zap!” is the work […]

2025年10月21日 / Last updated : 2025年10月21日 桑子 研 Science

Jam’s Secret Ingredient: The Magical Pectin Science on Your Toast!

I’m Ken Kuwako, your Science Trainer, and for me, every day is an experiment! Why is the jam on your toast so deliciously gooey? 🍓 We just boil down fruit and sugar, so how does that signature “jelly-like” texture appear? The truth is, there’s a magical “scientific trick” hidden inside the fruit itself. This time, […]

2025年10月20日 / Last updated : 2025年10月20日 桑子 研 Science

Static Magic: Why Your Soap Bubble Dances to the Beat of a Charged Balloon

I’m Ken Kuwako, your Science Trainer! Every Day is an Experiment. Soap bubbles float gently through the air. Usually, they drift wherever the wind and gravity take them, but what do you think would happen if we brought that “invisible force” closer? That’s right, the same force that makes your hair stand on end or […]

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著者: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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