Average Reviews:
(More customer reviews)Been looking for a set of these for years since I lost my first set. The science is interesting enough, but the fun part is completely baffling your friends. They look identical, but if you can palm one and bounce the other, your friends will be shocked when you make the switch and the ball just thuds to the floor. Its all about coefficient of restitution if you want to get into the physics of it, but they're just plain fun!
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Discover the properties of rubber and elasticity with a famous magicians trick. Drop two black balls and watch as one bounces and one sticks to the floor. Freeze them and they do the opposite. The Jumbo Test Tube comes complete with Vice Versa Balls,a kit to make your own bouncing balls, and an informative leaflet with great experiment and project ideas! Vice Versa Balls are safe for ages 5 and up!
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