⭐ Discovery Sparks: The Science of Your Heart & Muscles in Motion
- Erica Benjamin
- 11 hours ago
- 2 min read
Hello Tiny Scientists!
Today we’re exploring an exciting piece of your body science — how your heart and muscles work when you run, jump, and play!
Whether you’re bouncing a basketball or racing your friend down the yard, your body is doing amazing work behind the scenes. When you move fast, your heart starts beating quicker to pump oxygen-rich blood to your muscles. Your muscles then use that oxygen to make energy — kind of like how a car needs gas to go!
🏃 Today’s Discovery Activity: Your Heart in Action
Try this:
Take your pulse before you move — count beats for 15 seconds and multiply by 4.
Do 30 seconds of your favorite active move (jumping jacks, running in place, or hopscotch).
Take your pulse again and notice what happened!
🔬 Why does this happen?
Your heart is like a super-strong pump. When your body needs more energy, your heart works harder to deliver oxygen faster. That means more blood traveling to your muscles — so you can run, jump, and play even longer!
🎯 Tiny Sparks Question: Why do you breathe heavier when you run?
💡 Fun Fact: Your muscles get tired when they run out of the oxygen they need — that’s when your body tells you to slow down or rest!
✨ Big Idea: Your body is a team of systems working together — your heart, blood, lungs, and muscles are all scientists helping you move! Getting to know how they work helps you take better care of your body and fuels future health scientists.
Print the coloring page, grab some crayons or markers, and enjoy discovering how sports and health sciences are already part of your child’s world.
💛 Keep discovering, Tiny Sparks! Stay curious and keep exploring how your amazing body moves.
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