Catapult Competition

Materials:

Popsicle sticks, plastic spoons, rubber bands (all sizes), masking tape, light
weight ball (ping pong, plastic golf ball) to launch.
Optional items: paint stir sticks, paper rolls tube, plastic water bottle, bottle caps to hold
ball. Wooden clothes pins can also be used to create the potential energy (spring).

Download activity here

Grade Range: 5 – 8

Time: 45 Minutes

Synopsis: This activity helps to teach simple machines, energy and motion, and it uses
engineering and design skills.