King Hiero asked Archimedes to build war machines to defend Greece against the Romans. Archimedes invented the catapult.
Materials: 9 popsicle sticks, 5 rubber bands, spoon
STEP ONE: Take 7 sticks and fasten together with a rubber band near one end.
STEP TWO: Add a rubber band to the opposite end
STEP THREE: Take two sticks, fasten together with a rubber band as close to the end as possible
STEP FOUR: Insert the stack of 7 sticks between the two sticks (see picture below)
STEP FIVE: Make an X with a rubber band to hold the 9 sticks together (see picture below)
STEP SIX: Use a rubber band to attach the spoon to the end of the top stick (see picture below)