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Topic: Electricity and Magnetism

Change grade range

Resource	Grade Level	Media Type
AC / DC: What's the Difference? This animated essay from the American Experience Web site explains the difference between alternating and direct electric current and offers in-depth explanations about the role played by a battery, light bulb, wire, and generator.	6-12	HTML Interactive
Diamonds: The Science Behind the Sparkle This illustrated essay from the NOVA Web site explains why the atomic structure of a diamond slows down light and produces a sparkle more brilliant than from any other colorless substance.	6-12	HTML Document
Everyday Radiation How much radiation are we exposed to every day? Find out in this video segment adapted from FRONTLINE.	6-12	QuickTime Video
Geometric Optics This interactive simulation adapted from the University of Colorado's Physics Education Technology project illustrates how lenses refract light to form images. Manipulate the object, screen, lens, and focal length and observe how the image adjusts.	6-12	Flash Interactive
Hoover Dam and Hydroelectric Power How does a dam generate electricity and what are the environmental impacts of operating these mammoth structures? Find out in this video segment adapted from Building Big.	3-12	QuickTime Video
Imaging with Radar This interactive activity from NOVA features synthetic aperture radar (SAR), which uses radio waves to create high-quality images. Examine SAR images of Washington, D.C., and learn about this technology's unique advantages.	6-12	Flash Interactive
Infrared: More Than Your Eyes Can See In this video segment adapted from NASA, astronomer Michelle Thaller introduces the world of infrared light and demonstrates how infrared cameras allow us to see more than what the naked eye can perceive.	3-12	QuickTime Video
Laser Waterfall In this video from the Encyclopedia of Physics Demonstrations, observe how a laser beam is trapped in a water jet because the light reflects against the surface of the water.	6-12	QuickTime Video
Lightning! This video segment adapted from NOVA explains the mysterious force of lightning.	3-12	QuickTime Video
Lightning Hunters Find out how scientists and engineers use rockets to attract lightning in this video segment adapted from NOVA.	3-12	QuickTime Video
$Observing Refraction of Light$ Observing Refraction of Light This video segment adapted from Shedding Light on Science illustrates how light changes speed, and thus direction, in a process known as refraction.	5-12	QuickTime Video
Primary Colors of Light and Pigments In this interactive activity adapted from Shedding Light on Science, discover the difference between the primary colors of light and the primary colors of pigment—and the connection between the two.	6-12	Flash Interactive
Radio Waves & Electromagnetic Fields In this interactive simulation adapted from the University of Colorado's Physics Education Technology project, explore how a radio transmitter broadcasts electromagnetic radiation.	6-12	Java Web Start Interactive
$Refraction of Light Demonstration$ Refraction of Light Demonstration In this interactive activity featuring videos adapted from the Rutgers PAER Group, observe how light bends when it travels through a convex lens, a concave lens, and glass.	5-12	Flash Interactive
Speed of Light This video segment adapted from Shedding Light on Science uses historical illustrations and everyday examples to show that light has a speed and does not travel instantaneously.	5-12	QuickTime Video
String Theory: A New Picture of Gravity This video segment from NOVA describes the general theory of relativity and the theory of electromagnetism.	6-12	QuickTime Video
Tour the Electromagnetic Spectrum Take NOVA's interactive tour of the electromagnetic spectrum and find out why your eyes are like antennae for a narrow band of electromagnetic radiation.	6-12	HTML Interactive