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Made from high-density
making it easy to carry and play anywhere
Great for teaching about detoxification
Peregrine falcons are the fastest animals in the world
The intricate skeletal design contrasts beautifully with the luminous amber
Water Power: Rocket Propelled Cars, Boats, and More Kit Buttons & Pins Made from high-densityHarness the power of air and water to make things move! Build water rocket cars, jet propelled boats, a water gun, and even a lawn sprinkler. Learn about the laws of physics and their applications in real world engineering. When you pump air into your rocket, you increase the air pressure inside. Then when you release the clamp, watch out the air and water mixture inside will shoot out, causing your rocket to zoom off in the opposite direction! Many
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