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 ...
👉 Watch the video of Sarah’s science experiment at Lamar Elementary School here! Hello parents, teachers and students! Got too many candy hearts for Valentine’s Day? Make a jumbo popsicle stick ...
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