I’m Ken Kuwako, a science trainer. Every day is an experiment. 【Read this article in English】 When it comes to “detecting carbon dioxide” in a science class, calcium hydroxide solution is a familiar sight. But are there teachers who buy commercially available calcium hydroxide solution every time? Of course, buying it is one way to […]

I’m Ken Kuwako, a science trainer. Every day is an experiment. Observing Peanut Seeds It’s a familiar sight: peanuts lined up on a supermarket shelf, a go-to snack you crack open and munch on. But within that small kernel lies a magnificent story of life—a plant’s grand plan for its future. The peanut we so […]

I’m Ken Kuwako, a science trainer. Every day is an experiment. Return to special page Let’s make a straw flute that chirps like a little bird! Does a straw really chirp like a little bird? Chirp! Chirp, chirp! Today I’m going to show you a flute made from a straw that sounds like a little […]

I’m Ken Kuwako, a science trainer. Let’s have fun with science on this site. Hello, science teachers! Today, I’d like to introduce a hands-on experiment idea for a movable pulley that uses common materials and will surely make your students say, “Oh, I get it!” Have you ever tried to explain in a textbook that […]

I’m Ken Kuwako, a science trainer. Every day is an experiment. 【Safe and Simple!】 An Introduction to the “Fizzing Reaction” Experiment Using Citric Acid and Baking Soda Remember the delightful “fizz” of aラムネ (a Japanese soda candy) melting on your tongue? Or the way a bath bomb bubbles up and fills the tub? These are […]