Smithsonian Science Activities, Newtons Cradle,96 months to 216 months Gray
$32.95
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Includes Newton's Cradle and Color Poster with Instructions Demonstate Conservation of Linear Momentum Swing One Ball, or Two and observe Equal Reaction on the other end Named after Sir Isaac Newton and his Third Law Of Motion Includes 23" x 17" ( 58 cm x 43 cm) Color Poster Age 8 and Up
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