What is light? A detailed examination of what creates light, light spectrums, scientists' discoveries, and colored graphics. Appropriate for the older student or adult researcher.

This online exploration provides an opportunity to identify the different properties of waves and the relationship that exists between energy, wavelength, and frequency. Correlate images from the Hubble Telescope to the wavelength,...

Light! How do we see? What makes light? Find out everything you need to know through the Q&As on this site.

What is light energy? Here we'll learn about the properties of light and how pigments such as chlorophylls absorb light energy.

Students are introduced to the electromagnetic spectrum through this group research activity. Each group investigates a different wavelength range within the em spectrum and reports back to class. Discussion ideas also included.

A tutorial on the electromagnetic and visible spectra. Discusses dispersion and how perceptions of white and black are related to the visible light spectrum.

Learn all about stars and the electromagnetic spectrum in this series of activities.

This illustrated physics tutorial explains the electromagnetic and visible spectra of light using illustrated examples and interactive practice problems.

Infrared light lies between the visible and microwave portions of the electromagnetic spectrum. Infrared light has a range of wavelengths, just like visible light has wavelengths that range from red light to violet.

NASA related site shows the entire Electromagnetic Spectrum. Provides a brief description of the expansive colored spectrum as well as a related link that provides more details.

In discussing the findings of James Clerk Maxwell and Michael Faraday, this site reveals information and formulas related to electromagnetic radiation and the electromagnetic spectrum.

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.

The dualistic nature of light is discussed. The photoelectric effect and the Davisson-Germer experiment are contrasted as empirical evidence supporting each of the two views - particle and wave - of the nature of light. The photoelectric...

Students find and calculate the angle that light is transmitted through a holographic diffraction grating using trigonometry. After finding this angle, student teams design and build their own spectrographs, researching and designing a...

Lucianne Walkowicz shows us the waves just beyond our perception: microwaves, radio waves, x-rays and more. [5:58]

Acting as a subtopic of the General Chemistry Virtual Textbook's section on Atoms and the Periodic Table, this site discusses continuous spectra and line spectra using examples and charts to assist in the understanding.

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!

A discussion of ultraviolet light and its interaction with the atmosphere. Describes the UV detectors on a spacecraft which are used to study the UV light emissions from astronomical bodies.

Under the heading, "Cracking the Code of Faraway Worlds" this site explores the uses of spectrum (and spectrograph, spectra) in planetary study. In addition to an image, a description of spectrum and its uses in space science is provided.

A study guide for concepts related to wave optics.

A short sketch of the life and work of Thomas Young (1773-1829 CE). Traces early upbringing and education and his scientific discoveries and contributions.

This site explains the construction and workings of a Scintillation Counter.