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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

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 […]

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 […]

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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.

Recent posts

[Shocking!] Can You “Keep a Bird” with Just One Straw!? A Real Water Whistle Experiment at Home

2026年2月16日

Make Your Own Straw Wind Instrument with Kids! Snip, Snip—Why Does Cutting It Make the Sound Higher?

2026年2月15日

Why Does an Ambulance Sound Change? Uncover the Doppler Effect with Scratch!

2026年2月14日

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

2026年2月13日

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

2026年2月12日

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

2026年2月11日

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

2026年2月10日

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

2026年2月9日

What Happens When Acid Meets Base? Create the Crystals of Neutralization — A Visible Chemistry Drama (HCl & NaOH Experiment)

2026年2月8日

What Happens If You Jump on a 300 km/h Bullet Train? The Half Super Ball Experiment Explains It!

2026年2月7日

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