Hi, I’m Ken Kuwako, a Science Trainer. My life is one big experiment. [This article is also available on a podcast!] Mixing iron and sulfur and heating them to create iron(II) sulfide—it’s an experiment in sulfurization that every science teacher has likely done at some point. Living in a volcanic country like Japan, it’s worthwhile […]

This is Ken Kuwako, your Science Trainer. Every day is an experiment. That familiar crunch, the burst of sweet and sour juice… We all know and love apples. But what if I told you that the red, sweet part we eat isn’t actually what botanists call the “fruit”? A surprising truth! Are we actually eating […]

This is Ken Kuwako, your Science Trainer. Every day is an experiment. We all use earphones every day, whether they’re in-ear or over-ear models. But did you know there’s a way to listen to sounds without using your ears at all? Today, we’ll use some common items to perform a simple experiment that demonstrates the […]

This is Ken Kuwako, your Science Trainer. Every day is an experiment. Have you ever seen an empty can balanced like this? First, take a look at this video or photo. You’ll see a tall, slender can balanced at a seemingly impossible angle. It’s a truly unbelievable sight, isn’t it? The posture of the can […]

I’m Ken Kuwako, a science trainer. Every day is an experiment. Do you know about a special ‘flying experiment’ that the whole family can enjoy? All you need are cardboard and paper cups that you have at home. No special tools are required. You might be surprised and think, “Huh? Can it really fly?”, but […]