How can a mousetrap power a vehicle? What is friction and how can it be managed? How is energy stored? How is speed calculated? You can "Build the Answers" with mousetrap racing. You can also learn faster and retain more with hands-on activities that challenge the senses. Designed, manufactured and refined based on years of classroom testing and teacher input. Use the mousetrap racer as a hands-on supplement to teach power and transportation. You can also custom paint your racer.