Campfire Brownies in an orange! at least 1 orange per camper, Brownie or cake mix, 1 sharp knife, Sturdy soup spoons, Heavy foil wrap. Notes: For brownie mix you will get approx. Cake mix will yield approx.
Balloon Rockets - I've done this in several science camps I've conducted. Kids have fun with it. But, when the balloon deflates it may fall off the straw because it's surface area changes - another good thing to show and explain to kids.