5. Liquid Nitrogen Mixed With 1500 Ping Pong Balls

The Science: After a few moments of suspense, the action happens. The event results from the pressure in the tightly sealed container of liquid nitrogen. Lowry explains: “The liquid [nitrogen] will turn into gas, and the pressure will build up and up and up.”

6. Burning Magnesium In Dry Ice

The Science: Magnesium’s reaction with carbon dioxide is a dramatic and beautiful demonstration to show that oxygen isn’t always a prerequisite for fire and to reveal carbon’s place in the reactivity series.