Ping Pong Pulley
By: Alyssa Darr and Payton Alexa
Do you need a machine to entertain your kids for hours on end? Then you need the Ping Pong Pulley. Its amazing advances in science will keep you kids busy for hours.
Dominoes actitived the lever and the lever actitived the pulley
The pully pulled the dominoes up the incline plane.
The incline plane helped the dominoes hit the ball that rolled into the cup.