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“Happy” and “Unhappy” Balls

Avg. Ratings: 5.0 (1 Review)
Use to Demonstrate Elastic Force

  • The two balls come with instructions
Although both balls are identical in shape, the “happy” ball rebounds very well while the “unhappy” ball does not. Several experiments involving the simple bounce and roll of these balls demonstrate repulsion and inelasticity.

Caution: WARNING: CHOKING HAZARD–This toy is a small ball. Not for children under 3 yrs.



Item # Description Unit Availability Price Quantity
470008-032 “Happy” and “Unhappy” Balls
Kit of 1 Retrieving


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Total Ratings: 1
Avg. Ratings: 5.0 out of 5

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Yes: 0 No: 1 
Jim from IT The Isles of Ba
Yes, I recommend
Fabulous! - Ones happy! And ones unhappy - what more could you want in the world? They have a loving family here in my stunning ball collection museum!
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