PURPOSE: To demonstrate the third law of motion dramatically.

DESCRIPTION: Pressing the fire extinguisher handle expels carbon dioxide out a nozzle straight behind the tricycle, causing forward thrust of the tricycle.

This is a MUST - an unforgettable demonstration.

SUGGESTIONS: Be CAREFUL! Don't Crash and Burn!

EQUIPMENT: Rocket tricycle, as photographed.

SETUP TIME: 30 minutes

KEYWORDS: rocket trike newton's third law of motion