What is a prism? A place for light waves that commit minor refractions! The thorough resource includes three hands-on investigations covering light reflection and refraction; mirrors, lenses, and images; and optical systems. Subject...

Radioactive pollutants can enter the body through ingestion, inhalation, absorption, or injection. The last lesson in a series of 36 introduces pupils to radioactive pollution. They study its sources, both natural and man-made, its...

Learners explain historical findings such as Rutherford and Bohr's contributions, explain wave particle duality, and formulate Heinsenberg's uncertainty principle. They also draw s, p, and d orbitals, explain more historical findings,...

Rainbows can teach us about the visible light spectrum. Learners observe multiple items that clearly display a rainbow to develop better connections. The lesson then explains wavelength using a rope to make waves.

Talking in front of others can be intimidating, especially when you aren't speaking in your native language. Put your English language learners at ease before a class presentation. They can follow these tips to give relaxed and effective...

An informative physics lesson includes two teacher demonstrations, one on AC currents and the other on DC currents, allowing pupils to take notes while watching. The resource includes questions to assign as homework or...

Learn about gravitational waves, what causes them, and how they are detected.

Acting as part of an overview on quantum theory, this section of the site answers the question, what is light? In answering the question, specific discussion is directed toward light waves and theories of light.

An in-depth encyclopedia article from Wikipedia on waves gives a definition for what a wave is. Other content in the article includes a list of examples and characteristics of waves, information about the difference between transverse...

Discover why earthquakes happen, how we measure them, and why they only happen on Earth.

Explains what electromagnetic energy is, the history of its discovery, some terms used when talking about it, and gives some facts about it.

An excellent site with several pages describing what electromagnetic radiation is.

Explains what earthquakes are, what causes them, the different types, tsunamis that can be caused by them, and how to prepare if living in an earthquake-prone area.

Find out why the oceans are blue and what causes waves by clicking here. There is a table of information about the four oceans as well as interesting facts on waves, salinity, and tides.

This resource features a basic definition of infrasonic. It also explains the difference between infrasonic and subsonic.

Learn what renewable energy is, the different types, and why it's important to conserve energy.

This site details what radiation is, the physics of radiation, and radiative transfer as it occurs in nature. Content explores the electromagnetic spectrum, electromagnetic waves, properties of radiation, and solar radiation.

This site is primarily set up as an outline and is loaded with graphs, maps, and images. It covers a variety of earthquake-related topics, such as what causes earthquakes, fault lines and structures, seismology, a historical look at...

What is electromagnetic radiation and how does it work? Review a captioned graphic that explains electromagnetic radiation and the visible and invisible types of radiation on the electromagnetic spectrum.

This lesson from the Glenbrook South High School discusses two-point source interference. It gives detail on the difference between constructive and destructive interference, what a two-point source interference is and what happens when...

Explains what a natural disaster is and provides a list of every type along with a short description of each.

This is a site from NASA that contains an interesting and fun way to learn about the electromagnetic spectrum. Kate receives a strange riddle from her grandfather. Find out what it says and go through the gateway to the Land of the Magic...

Explains the Uncertainty Principle, wave-particle duality, what the electron cloud model is, and how it came about as a result of the Schrodinger equation for Hydrogen.