Wind Up Racer - Sick Science #089

Read the full experiment at http://www.stevespanglerscience.com/experiment/wind-up-racer
Finding creative, hands-on ways to demonstrate the difference between potential and kinetic energy can be difficult. Not to worry... that's why you have us! With some simple household items and a little creativity, the Wind Up Racer will have you racing a spool across the room in no time!