{"id":52995,"date":"2025-09-23T17:04:29","date_gmt":"2025-09-23T08:04:29","guid":{"rendered":"https:\/\/phys-edu.net\/wp\/?p=52995"},"modified":"2025-09-23T17:04:29","modified_gmt":"2025-09-23T08:04:29","slug":"from-kerosene-pump-to-beating-heart-hands-on-science-class-to-feel-the-cardiac-mechanism","status":"publish","type":"post","link":"https:\/\/phys-edu.net\/wp\/?p=52995&lang=en","title":{"rendered":"From Kerosene Pump to Beating Heart! Hands-On Science Class to Feel the Cardiac Mechanism"},"content":{"rendered":"

I’m Ken Kuwako, a science trainer. Every day is an experiment!<\/strong><\/span><\/p>\n

“Thump-thump, thump-thump…” Can you imagine this small organ, your heart, working tirelessly inside your chest, pumping an amount of blood equivalent to about 40 oil drums throughout your body in a single day? Yet, many middle school students find it hard to grasp what they learn in textbooks, like “the heart has four chambers and ‘valves’ that prevent blood from flowing backward.”<\/p>\n

This is where experiments come in! You can actually use a common household item to experience the intricate mechanism of this life-pumping organ for yourself. Today, I’m going to introduce a heart model experiment using a kerosene pump that I developed with a student teacher.<\/p>\n

Why Does Blood Only Go One Way? Solve the Mystery with a Common Tool!<\/h3>\n

One day, a student teacher came to me for advice, asking, “How can I make my students truly understand the role of the heart’s ‘valves’?” She felt that simply showing diagrams or videos from a textbook wasn’t sparking their curiosity.<\/p>\n

So we came up with an idea: using a kerosene pump as a model for the heart<\/b>. The key was the tiny “valve” inside the pump. This was the key to understanding how the heart works.<\/p>\n

Experiment Prep: Build a Life Pump from a 100-Yen Shop<\/h3>\n

The materials are very simple and can be easily found at home or at a 100-yen shop.<\/p>\n

\u3010Materials Needed\u3011<\/b><\/p>\n