Air pressure

We read a book about the first person to cross the English Channel in an airplane, and then we watched Bill Nye the Science Guy's DVD about flight. For hours after that, the kids played with air. They duplicated Bill Nye's experiments, and Noah designed some of his own. We talked about how amazing it is that something we can't even see can be powerful enough to make an airplane fly. Noah said, "It's not really that surprising, since Someone we can't see is powerful enough to create the whole universe!"