I’m Ken Kuwako, a science trainer. Every day is an experiment. When handling chemicals in the science lab, a basic knowledge of dilution is essential for conducting experiments “safely, accurately, and efficiently.” This time, I’ve put together a guide for teachers on the dilution methods, safety aspects, and concentration guidelines for common experiments that you […]

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 […]