Science Trainer Ken Kuwako here. Every day is an experiment. Have you ever experienced that ringing in your ears or that feeling of being squeezed when you dive deep into a pool? That’s the force of water pushing against an object—what we call “water pressure.” But since this force is invisible, it’s surprisingly hard to […]

Hello, I’m Ken Kuwako, your science trainer. Every day is an experiment. Ever wondered what the shape of invisible “sound” looks like? You might picture pricey gear in a science lab, but the truth is, you can pull off surprisingly professional experiments using simple, everyday items. Today, we’re diving into the “standing wave” (teijou-ha) experiment, […]

I’m Ken Kuwako, your Science Trainer. Every day is an experiment. Have you ever listened closely to the “Tock-tock-tock…” sound as you pour boiling water from a kettle into a thermos? That simple, everyday sound actually hides a scientific mystery about “sound” that you learn in middle school science. Today, I’ll be talking about the […]

Hi, I’m Ken Kuwako, Science Trainer. Every day is an experiment. “Teacher, why does Japan have so many earthquakes?” When covering changes in the Earth’s crust in a science class, have you ever been asked such a simple yet profound question by a student? When we hear about an earthquake on the news—”the epicenter was […]

I’m Ken Kuwako, your Science Trainer. Every day is an experiment! The Marble Lens Experiment All you need for this experiment is a clear, transparent marble (one per person is best). In school settings, I buy them in bulk for students. The fact that it’s so inexpensive is part of what makes this experiment great! […]