Our elementary science this year covers a broad range of ideas. I decided to do at least one science experiment a week from a couple of Steve Spangler’s science experiment books. Last week, we did an experiment that demonstrated Bernoulli’s Principle. For this experiment you’ll need a hairdryer, toilet paper roll, and a ping pong ball. He performed this experiment on the Ellen Show. My children loved doing it over and over. I think it really did help them understand the idea of lift that makes an airplane able to fly.