Cope-cake activity- part of a coping skills activity packet. Make a small cupcake or a large cupcake. Helps children identify their social supports and coping skills (including positive self-talk) through a fun game.
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.