Human Body Science Experiment - Heart Pumping

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This heart-pumping science experiment is easy to set up and have fun with. One of my favorite subjects to teach my kids is science

What you need: – a clear jar – a balloon – 2 plastic bendy straws – water – food coloring (optional) – tape – scissors Learn more

Cut the balloon where the neck starts to widen into the balloon. Add a few drops of food coloring to a cup or so of water. The color helps you see the water movement better.

Stretch the balloon over the mouth of the jar, you want it to be as flat as possible. Learn more

Take the neck of the balloon and wrap it around the end of one straw.

Place straws into the jar, sliding them into the holes you made eariler. Learn more

Now press down lightly onto the balloon you have stretched over the jar mouth. Watch what happens.

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