So when you roll a ball down a ramp, it has the most potential energy ... A hollow sphere (such as an inflatable ball) A solid sphere (such as a marble) (It does not need to be the same size ...

Roll the marble down the longer ramp for increasing amounts of time (one second, two seconds, three seconds, etc.) until the time the marble goes past the end of the ramp. Mark the distance ...

This super long course features 7 wave slopes that make the marbles twist and roll like a snake. Watch as the marbles glide down the track, creating an exciting, winding journey full of surprises.

Rolling a marble down a maze into dominoes that fall ... When the ball rolls down the ramp and hits the first domino, you grin. When the last domino falls on the seesaw, you’re smiling from ...