This lesson will introduce light waves and describe how a particle can travel as a photon or a wave. It is 4 of 4 in the series titled "Light Waves."

This lesson will introduce light waves and describe how a particle can travel as a photon or a wave. It is 3 of 4 in the series titled "Light Waves."

Use this tool to learn facts about the range of the electromagnetic spectrum, from radio waves to gamma rays.

An introductory lesson describing the definition of energy, and highlighting different sources of usable energy.

This lesson will discuss the differences in constructive and destructive wave interference. It is 2 of 2 in the series titled "Wave Interference."

This lesson will present how light and motion energy can be used to power machines. It is 4 of 4 in the series titled "Energy: Machines, Motion and Light."

This lesson will introduce the electromagnetic spectrum and the properties and uses of the waves it contains. It is 3 of 4 in the series titled "Electromagnetic Spectrum."

This lesson will introduce the electromagnetic spectrum and the properties and uses of the waves it contains. It is 4 of 4 in the series titled "Electromagnetic Spectrum."

light

This website has three different projects from which to choose on the topic of why the sky is blue. Also, you can scroll up to learn more about why the sky is blue.

A gallery of astronomy images which depict galaxies, comets, the moon, planets, nebulae, supernovae as seen in various regions of the electromagnetic spectrum. Each image in the gallery is described. Fascinating!

Home of Nobel-prize-winning physicist who proved light has both wave and particle aspects, the Compton Effect.