The ZOOMers show how well balanced they are, when they play "Book Balance." In today's ZOOMsci, Estuardo, Kortney, Mike, and Shing Ying design a "Steadiness Tester" using wire and batteries. Later in the show, the ZOOMers get to work on their "Chain Reaction Machines." And throughout the show, the ZOOMers get a "taste" of some silly food jokes!