→ Cheap Price Happy and Sad Balls - Affordable Price!

Product Name: Happy and Sad Balls
ASIN #: B0064CPPCQ
Brand: Carolina Biological Supply Company
Price: VIEW PRICE!

Bounce 2 seemingly identical balls. One bounces but the other doesn't. Challenge students to figure out why. Great discrepant event demonstration for momentum, collision, and energy conservation studies. Instructions and activities included. Read More »

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