100 What Goes Up Must Come Down-Low

What Goes Up Must Come Down FOCUS Question Why do things move up or down?

A girl throws a ball. It goes up in the air. A throw is a kind of push. A push moves things.

The ball comes down. Gravity pulls it down. Gravity is a kind of pull. It can move things without touching them.

A boy pushes a car up the ramp. He lets go. Gravity pulls the car down. Gravity can be fun!

A girl's legs push on some steps. Climb. Climb. Slide! Gravity pulls her down.

A boy pulls a sled up a hill. He lets go. Will the sled stay at the top of the hill? No. Gravity pulls the sled down.