SCIENCE ACTIVITIES FOR FUN!!!
Objects need a force to start them moving and a force to make them slow down and stop. To demonstrate this, we will shoot a cup into the air and see how high it flies before it stops and falls.
For this exercise you will need:
Squeezing the bottle makes the air inside push against the plug with a strong force.
The force of the air in the bottle makes the plug move. The force of the moving plug then lifts the cup into the air.
The force of gravity pulls down on the cup, slowing it to a stop, then making it fall back down.
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