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Ping Pongs and Air Pressure Experiment – Science Sunday

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Ping pongs and air pressure experiment Homeschool Creations

We had much fun with a quick and easy experiment this week that helped us all learn a little bit about high and low air pressure. I found a lovely book of science experiments {see below} hidden in a stash of my teaching books while I was cleaning and sorting books for next year.

If you want to try the experiment yourself, you’ll only need a few things:

~ a blow dryer

~ ping pong balls

~ electricity

ping pong experiment 1

Before we started our experiment we made a prediction about what would happen to the ping pong ball resting on the nozzle of the blow dryer. when we turned the blow dryer on. Would it blow away? Stay in the column of air above the dryer? Be sucked into the hair dryer? Melt? The kids were mixed in their predictions and Zachary ended up being the one to guess predict correctly.

Each of the kids took turns trying it out, moving the hair dryer from side to side and up and down so that the ball traveled along with the air stream. McKenna wondered if two balls would be able to stay in the air stream ~ and they did for all of 3 seconds {but the look on her face was hilarious!}.

 ping pong experiment 2   ping pong experiment 3
We sat down afterward and recorded the experiment results on our journal sheet, drew pictures of what we observed and then I asked the kids to tell me why they thought the ball stayed in the air stream.

Zachary ~ the ball is light and air is heavy so the air was lifting the ball up

McKenna ~ the ball was light and the air force was so strong it floated

Laurianna ~ because the heat rose straight up and didn’t spread out

The Nutshell Reason

The pressure in the column of rapidly moving air shoots upward and is lower in pressure than the air around the column. The ping pong ball is ‘pushed’ back into the center column by the higher pressure of the air particles around the column ~ air moves from areas of higher pressure to areas of lower pressure.

How to Do Science Experiments with Children

Resource: How to Do Science Experiments with Children is available from Amazon and you can also check it out {and do some of the experiments} using Google Docs! The experiments use easy-to-find objects and also include record sheets for kids to fill out with their predictions and experiment results. Each experiment also includes teaching tips and explanations…which are rather handy! :)

Don’t forget to check out some other great science ideas at Science Sunday hosted by Ticia at Adventures in Mommydom.


This post may contain affiliate or advertiser links. Read my full disclosure policy .

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  1. WhyAmySmiles says

    Your pictures in this post are priceless! What fun! I plan to do this with the preschoolers in our homeschool co-op tomorrow. Thanks for sharing a fun idea!

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