Texas State Energy Conservation Office
Investigation: Conservation of Energy
By rolling marbles down a six-foot length of track, physical scientists determine how much energy is lost to heat. It is recommended that you opt for the foam pipe insulation track because more friction slows the marble, allowing...
Science Museum of Minnesota
Science Museum of Minnesota: Thinking Fountain: Friction
The Thinking Fountain provides this simple experiment for understanding friction and it relationship to energy.
Scholastic
Scholastic: Dirtmeister's Science Reporters: Friction
Step into Dirtmeister's Science Lab and become a Science Snooper! Work side by side with him as he sets out to answer the challenge question: "How does the force of friction affect us in our daily lives?"