TO KINETIC ENERGY IN THE BLINK OF AN EYE. CATAPULTS ARE A BATTLE WEAPON DATING BACK TO MEDIEVAL TIMES, AND NOW THAT SAME CONCEPT SHAPES OUR DAY TO DAY LIVES. FIRST WARNING METEOROLOGIST MARQUISE MEDA ...
Explore simple machines and create a catapult using simple materials. Explore simple machines and create a catapult using these simple materials: popsicle sticks, marshmallows, spoon, and rubber bands ...
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