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You are here: Home / By Age / Elementary / Floating Ping Pong Ball Science Activity

January 28, 2015 By Chelsey

Floating Ping Pong Ball Science Activity

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Create a floating ping pong ball with just a few materials- perfect for demonstrating the Bernoulli Principle. Both kids and adults will love this hands-on science activity!

Follow our Science for Kids Pinterest board!

 

Cool Science for Kids: Floating Ping Pong Ball~ BuggyandBuddy.com

 

You guys are going to LOVE this science activity! We had so much fun exploring the Bernoulli Principle with our infamous ping pong ball snowmen (which we also used for this comparing numbers math game and our homemade launching levers). In this activity we used a drinking straw to make a ping pong ball float and spin in the air.

Lucy (age 6) loved practicing this over and over, and even came up with her own predictions and theories based on the activity. This activity was a bit too challenging for Theo (age 3), so he invented his own version which he seriously did four almost an hour (which I share at the end of the post)! (This post contains affiliate links.)

 

 

Floating Ping Pong Ball Science Activity

Whenever I  invite my kids to participate in science activities, my main goal is NOT for them to master a set concept, but simply to allow them to explore the activity in their own way. Giving this freedom to children inspires them to make predictions and critically think about the world around them in a pressure-free setting.  

Materials for the Floating Ping Pong Ball Science Activity

  • Ping pong ball
  • Flexible drinking straw

 

straw and ping pong ball science

Procedure

1. Bend your flexible straw at a 90 degree angle. Hold it in one hand so the short portion of the straw is at the end and pointing up.

 

2. Place your ping pong ball over the open, short end of the straw.

 

floating ping pong ball science for kids

 

3. Blow air into the straw as you slowly release the ping pong ball. The ping pong ball is suspended in the air.

 

floating ping pong ball science for kids

 

This does take some practice, but the kids soon get the hang of it!

 

floating ping pong ball science for kids

 

Want to go even further?

Even more activities to inspire creativity and critical thinking for various ages.

  • Can you keep the ball on the straw by sucking air in rather than blowing out?
  • Have a partner time how long you can keep the ball in the air. See if you can beat your record.
  • Does the length of the straw affect the ping pong ball? Try cutting some straws shorter and testing it out!
  • Steve Spangler Science shows you how to use a hair dryer to make a ping pong ball float.

 

What’s Going On?

The ball stays in the air as you blow for two reasons: 1. The ball is pushed by surrounding air which keeps it in afloat (kind of like a kite flying). 2. The air from the straw keeps the ball afloat using Bernoulli’s Principle. The air moving around the sides of the ball is at a lower pressure than the surrounding, stationary air. The ball is trying to leave the area of low pressure, but the higher air pressure surrounding it forces it back into the low pressure area.

 

What about Younger Children?

Although this activity might be too challenging for younger children, they can still have some fun with the materials. Theo decided to use his straw to blow the ping pong ball around the floor of the house! He explored how the ball moved differently when he blew softly versus strongly. Our chairs (and messy floors covered in toys and laundry) provided fun obstacles for him to try to get around!

 

Cool Science for Kids: Floating Ping Pong Ball Activity~ BuggyandBuddy.com

Be sure to check out all our Science Activities for Kids on Buggy and Buddy!

 

Filed Under: Elementary, Kindergarten, Science Tagged With: ping pong ball, science, straw

« Geometry for Kids: Quilt Activity Using Triangles (Free Printable)
12 Creative Activities for Kids Using Ping Pong Balls »
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Welcome to Buggy and Buddy! I'm Chelsey, a former teacher and parent living on the central coast of California. I love sharing crafts, science, STEM and STEAM activities, free printables and more! Read More…

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