Wikipedia: Simple English Wikipedia: Herbivores

Many people refer to all coniferous trees as pine trees and the video addresses that misconception. It details the differences in pines, spruces, firs, and other related trees. Then it shares the family of trees and their branches.

Should you stay or should you go? A video lesson examines the heat gain and loss in a cold environment. The narrator compares standing still and running and their effects on heat energy.

Wikipedia offers great information on simple harmonic motion, including an image, formulas, and hyperlinked terms.

Wikipedia offers a simple definition of the term, "Ductility," including several hyperlinked terms.

What do electrical currents have to do with an MRI? Using a simple wire setup and a magnet, class members explore forces used in an MRI by investigating the magnetic force acting on a wire carrying a current.