Motion. Motion is moving. How do things move? How do you move?. You can move like this . . . back and forth OR up and down . You can move up and down on a seesaw.
How do things move?
How do you move?
What would happen if you and your friend are not the same size?
Motion can be circular. (like a circle)
Many things move in circles.
Some things need to be wound up. Then they can be put in motion.
Sometimes we can tell what motion will happen next.
What do you think will happen next?
Pushing or pulling is called force.