WATER POWER

Harness 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! Experiment to test some of the
differences of the differences between water
and air, and learn why your rocket needs
both to go fast