Counting Neutrons on the Moon

Find out how scientists are using a neutron detector onboard a satellite to try to find water on the Moon in this video adapted from NASA.

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Everyday Radiation

How much radiation are we exposed to every day? Find out in this video segment adapted from FRONTLINE.

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Facts About Radiation

This document from the FRONTLINE Web site offers examples of everyday exposure to radiation.

FAQs About Nuclear Power

Nuclear physicist, Dr. Charles Till, answers questions about nuclear power in this interview from the FRONTLINE Web site.

Fusion: Testing the First Hydrogen Device

This video segment adapted from AMERICAN EXPERIENCE features original footage of the U.S. test of the first hydrogen device, code-named "Mike", that would trigger thermonuclear fusion.

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Nuclear Blast Damage

This illustrated document from the AMERICAN EXPERIENCE Web site examines the "zones of destruction" caused by nuclear weapons.

Nuclear Reaction: Meltdown

What happens when a nuclear reactor overheats? This video segment adapted from FRONTLINE looks at the nuclear reactor meltdown at Chernobyl, the worst accident of its kind.

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Nuclear Reaction: Plutonium

One by-product of nuclear fission is plutonium. This video segment adapted from FRONTLINE takes a look at this toxic element.

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Nuclear Reaction: Searching for Safety

This text excerpted from Beyond Engineering: How Society Shapes Technology by Robert Pool and reprinted on the FRONTLINE Web site looks at the impact of nuclear power.

Nuclear Waste: Yucca Mountain

What happens to nuclear waste? This video segment adapted from FRONTLINE explores the controversy surrounding the United States' first nuclear repository site.

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Radiation: To Worry or Not to Worry

Students explore the many types of radiation and distinguish safe forms of radiation from those that are dangerous.

Radon Radiation

The biggest source of environmental radiation might be in your home. Find out more in this video segment adapted from FRONTLINE.

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Sources of Radiation

This interactive activity from the NOVA Web site explores sources of radiation, both harmful and beneficial, natural and manmade.

Theories

This lesson will help the students understand that science theories change in the face of new evidence, but those changes can be slow in coming.

Thunderstorms Produce Antimatter

This video from NASA explains the process by which gamma-ray flashes associated with storms produce matter/antimatter particle pairs.

Viewing Gamma Rays

Learn how high-energy gamma rays interact with electrons and discover how astronomers create images from high-energy gamma rays, in this interactive activity adapted from NASA.

Viewing Radio Waves

Discover how astronomers create images from radio waves, in this interactive activity adapted from NASA.

Viewing X-Rays

Learn about high-energy light waves and how astronomers visualize X-rays in this interactive activity adapted from NASA.