All chemical reactions require energy. To explore thermodynamics, classes read and discuss its laws, exothermic and endothermic reactions, enthalpy in many forms, calculate enthalpy problems, and use Hess' Law to calculate enthalpy of a...

Don't sacrifice physical activity every time cold winter weather arrives. From walking or circuit training to warm, healthy recipes and safety reminders, this resource will help encourage learners to prioritize their fitness and stay...

What is energy? Article provides a brief discussion of the many different forms of energy.

Use this site to learn about the scientific work of physicist, Max Planck (1858-1947 CE), whose studies in radiation and light earned him the 1918 Nobel Prize in Physics. Read his Nobel Lecture, "The genesis and present state of...

Compared to incandescent lamps, fluorescent lamps last longer, require less energy and produce less heat, advantages resulting from the different way in which they generate light.

This page defines electromagnetic radiation. Included are links to more information.