It Pays to Smile - The Lab It Pays to Smile Show us your money maker! Those pearly whites! That beautiful grin! How often do you look at the face of the president pictured on your paper money? What’s the facial expression of the president? Happy? Sad? Believe it or not, you can make George Washington’s face smile or frown on a dollar bill if you know the secret to this visual foolery.
Invisible Soda - Cool Science Experiment Over the years, our science guy, Steve Spangler, has made soda a staple in our science lab. There’s a good chance that you’ll be running to the kitchen after you see what Steve and Mark have up their sleeves. By: Spangler Science TV.