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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

The Magic Board: Build Electronics Like LEGO—No Soldering, No Fear!

I’m Ken Kuwako, your Science Trainer. Every Day is an Experiment! “Electronics… it sounds so difficult.” “I’m worried I’ll burn myself with a soldering iron.”Do those thoughts sound familiar? Well, guess what? There’s a “Magic Board” that lets you build electronic circuits like assembling building blocks, without ever touching a hot iron or melting solder!Have […]

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

Make Your Own Fault Line for $1! Feel the Real Movements of Normal and Reverse Faults in Your Hands – Easy DIY Geoscience!

I’m Ken Kuwako, a Science Trainer. Every Day is an Experiment! You’ve heard the word “fault” in earthquake news. But it’s difficult to truly grasp the movement of that enormous energy happening beneath the ground just by looking at a single illustration in a textbook, isn’t it? I was convinced: “If students could experience this […]

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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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