Catapult for science fair project
Jan science fair project. Sciencefaircatapult how to build catapults for a science project a popsicle stick catapult glue together one whole popsicle stick to one half popsicle sti.
PurposePurpose to determine if. Does changing the angle of launch of a catapult affect the distance a ping pong ball will travel. Watch later catapult lever science fair. Feb building catapult launcherby waynemia, views catapult lever science fair project.