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...
Curated OER
Enthalpy and Entropy
An entertaining presentation introduces both enthalpy and entropy. It explains equilibrium as the balance between these two measures and provides simple diagrams and graphics for additional clarity.
National Park Service
The Young Naturalist
Beginning with a brief history of our 26th president, Theodore Roosevelt, then followed by a discussion of his interest in nature, young scientists take to the outdoors to locate and observe local plants and insects....