This experiment teaches about erosion, and how grass and plants help to keep soil from washing away.
Listen to Your Heart
Parents: February is National Heart Month! This is a fun way for young children to learn where the heart is, what it sounds like, and how it works. — Professor DoStuff
You Will Need:
- 2-foot piece of clear
vinyl tubing - 2 kitchen funnels to
fit inside tubing - A friend
What to Do:
- Slide the funnels into each end of the tubing.
- Place one end of the stethoscope on your friend’s chest. Place the other end over your ear. Listen for the heartbeats.
- Now listen to your own
heart. Do they sound
the same? - Ask your friend to do some jumping jacks. Now listen to his
heart again.
What Will Happen?
The first time you listen to your friend’s heart, it will beat
slowly. After your friend does jumping jacks, his heart will
beat faster.
Why?
The heart is a muscle. It pumps blood
through the body. When we run, jump,
or play, our heart beats faster to pump
extra blood to our lungs and muscles.
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