Materials

• Bicycle pump with rubber stopper
• 1-liter clear plastic bottle
• Styrofoam packing peanuts

Instructions

• Step 1: Completely fill the clear plastic bottle with Styrofoam packing peanuts. Describe the packing peanuts by using their observable properties.
• Step 2: Attach the pump to the rubber stopper. Attach the rubber stopper to the clear plastic bottle.
• Step 3: Pump the bicycle pump five times. Remove the stopper and observe. Describe how the bottle can be used as a model to show how matter is made of particles too small to be seen.

Explanation

Pumping air into the bottle increases the air pressure inside the bottle. Once the rubber stopper is removed, the air rushes out, tearing the Styrofoam packing peanuts into pieces, creating confetti.