My favorite experiment in science was the tennis ball throw. We threw tennis balls in the air to see haw far they went. After finding out how far they went, we wrote down the speed. We went back to the class room and did math to find the distance and more math to find the velocity. This experiment was on the acceleration of air. The science was that we were finding how the speed, distance and velocity was of throwing a tennis ball into the air. This is like a roller coaster because you throw the ball up and it comes down. The same happens with a roller coaster. You go up, then you come down. Because whatever goes up, must come down.
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