Synopsys
Synopsys: Optics: A Gentle Intro to Optical Design: Wave Particle Duality
Discusses the manner in which light behaves as both wave and particle. This dualistic nature of light is one topic of many on the page.
University of Colorado
University of Colorado: Physics 2000: Cat Scans: Projecting Shadows
This page and the three pages which follow discuss how X-ray technology can be used to produce an image of the human body. Discussion is understandable and highly intriguing. Several interactive animations allow the visitor to explore...
Physics Classroom
The Physics Classroom: Polarization
"How Do We Know Light Behaves as a Wave?" An answer is provided in this discussion of the polarization of light and the use of Polaroid filters in sunglasses. The four methods discussed on this page are: polarization by transmission,...
TED Talks
Ted: Ted Ed: Light Waves, Visible and Invisible
Lucianne Walkowicz shows us the waves just beyond our perception: microwaves, radio waves, x-rays and more. [5:58]
Florida State University
Florida State University: Nature of Electromagnetic Radiation
This site from The Florida State University provides an informational page on electromagnetic radiation discusses the characteristics and properties of its many forms including X-rays, gamma rays, ultraviolet radiation, infrared...
American Museum of Natural History
American Museum of Natural History: O Logy: Light, Matter, Energy: Light the Way
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.
Science Struck
Science Struck: Wavelength of Light
Describes the characteristics of light, presents two formulas for calculating its wavelength, and provides a table of the different wavelength ranges across the electromagnetic spectrum.
Synopsys
Synopsys: Optics for Kids: What Is Light?
This site provides a short explanation of light, how it travels, and the speed in which it travels. Many other concepts related to optics can be found on this site as well.
Physics Central
Physics Central: Physics in the Living Room: Remote Control Tricks
An easy experiment through which students learn about light rays and the electromagnetic spectrum. Requires a TV, its remote, and a hand-held, flat mirror.
Wolfram Research
Wolfram Science World: Maxwell, James
This ScienceWorld site describes the Scottish mathematician and physicist James Maxwell (1831-1879) who published physical and mathematical theories of the electromagnetic field.
Georgia State University
Georgia State University: Hyper Physics: Color
This site from Georgia State University discusses the location of visible light on the electromagnetic spectrum. Includes the wavelength values for various colors of light within the visible light spectrum.
NASA
Nasa: Imagine the Universe: What's the Frequency, Roy G. Biv
In this very detailed lesson plan from NASA, learners investigate wavelength and frequency within the electromagnetic spectrum.
TeachEngineering
Teach Engineering: The Visual Spectrum
In this activity, students make simple spectroscopes (prisms) to look at different light sources. The spectroscopes allow students to see differing spectral distributions of different light sources.
CK-12 Foundation
Ck 12: Physics Simulation: Least Time
[Free Registration/Login Required] Explore how Snell's Law arises out of the principle of least time; understand how light rays change direction at interfaces between materials using this interactive simulation. A PDF worksheet and a...
California Institute of Technology
Cool Cosmos: The Herschel Experiment
This website provides a background on the discoverer of infared light--Sir Frederick William Herschel. A version of the experiment Herschel conducted in the 1800s is provided as well.
University of Oregon
University of Oregon: Electromagnetism
A solid summary from the University of Oregon of the work of James Maxwell Clerk, Michael Faraday, and others in the field of electric and magnetic phenomena. This is a fine essay.
ClassFlow
Class Flow: Visible Light and the Electromagnetic Spectrum
[Free Registration/Login Required] This flipchart introduces fifth grade students to the electromagnetic spectrum and focuses on the visible light spectrum, but all types of energy waves in the electromagnetic spectrum are touched on. It...
Wikimedia
Wikipedia: James Clerk Maxwell
Examine the life and contributions of James Clerk Maxwell. This site also provides links to explanations of many of Maxwell's contributions in the field of physics.
Geography 4 kids
Geography4 kids.com: Waves and Particles
Understand how light moves in small particles in the electomagntic spectrum.
University of Colorado
University of Colorado: Physics 2000: Einstein's Legacy: Microwave Ovens
A series of pages that explain how microwave radiation is utilized by ovens to cook food. Includes several Java applets.
Georgia State University
Georgia State University: Hyper Physics: Scattering Concepts
A collection of several pages explaining the principles which underlie Rayleigh scattering of light.
University of California
Center for Science Education: Gallery
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!
Walter Fendt
Walter Fendt: Apps Zur Physik
This site, in German, offers numerous apps that illustrate common physics principles. Apps are organized into categories: mechanics, oscillations and waves, electrodynamics, optics, thermodynamics, the theory of relativity, physics of...
Khan Academy
Khan Academy: Diffraction and Constructive and Destructive Interference
Article goes into detail about what exactly is interference.