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.
A fun jewelry making for kids project, this Pony Bead Owl Pendant can be the jump start to teaching your kids basic bead weaving. Turn this cute owl into a necklace, earrings, or even a key chain. Your kids will be want to show off their new skill!