Jacqueline learned this fun one at school and came home and showed it to us that week. We were all WOWED and very impressed. You take a bowl, fill it with water, take a cup, stuff a paper towel or napkin into the bottom of the cup. Next put the cup upside down right into the water. Then bring it out straight up, feel the napkin & it will be dry! The air is caught inside the cup and does not let the water in. FaBULoUS!