1. Make cardboard gears. You will need the following materials:
Cardboard - it can be thick or thin cardboardPenScissors strong enough to cut the cardboard
STEPS FOR MAKING GEARS
a. Download and print this gear template.
b. Cut out each template gear and using a pen or pencil trace the gears onto a piece of cardboard.
c. Cut out each gear using a pair of scissors.
d. Label the large gear 'Gear A', the medium gear 'Gear B', and the small gear 'Gear C'.