Flash Paper - Mr. Wizard crumples paper into a ball to simulate a shooting star. He explains that a real shooting star burns because of the friction of the atmosphere as stellar dust enters it. Mr. Wizard illustrates the concept of inertia by showing Christian a cup on top of which is a block of plastic supporting an orange. Using the handle of the broom, Mr. Wizard knocks the plastic out of the way so that the orange drops into the cup. Hero’s Voice - Scott is given a remote control to a robot. It enters the room and introduces itself. Nipple Expansion - Tanis is asked to guess how much gas is in a 12 oz. can of soda. Exercise For Cows: Well, cows jog along at two to four miles an hour on a special track developed by dairy scientists at Utah State University and the U.S. Agricultural Service.