A marble can roll across a surface., Gravity pulls the marble toward the ground., A force can make the marble move., A marble can move faster when it gets more speed., Friction can slow the marble down as it rolls., When two marbles hit each other, they have a collision., A moving marble can use force to push another marble during a collision., The speed of a marble can change when it hits another object., The amount of force and friction can affect how far a marble rolls after a collision., By changing the force, speed, and surface, scientists can observe how gravity, friction, and collisions affect the movement of marbles.

Marble Rolling

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