2C20.15 - Venturi Tubes
Demonstrate Venturi tube suction.
Instructions: With each of the side hoses sitting in a beaker of colored water and the air hose attached to the air coupler, then turn on the air about a quarter of the way. When air blows through the main tube, the colored water rises into the side tubes. NOTE: Do not turn the air up too high or you will spit dyed water everywhere, making for a not-so-fun cleanup.