[Free Registration/Login may be required to access all resource tools.] Students investigate the characteristics of radioactive emissions, and then complete equations involving radioactive decay when given pertinent information.

How much radiation are we exposed to every day? Find out in this video segment adapted from FRONTLINE: "Nuclear Reaction." [1:46]

This site has lesson plans and activities related to radiation. Activities include measuring radiation with a Geiger counter and observing radiation 'footprints' in a cloud chamber.

The students will evaluate their personal radiation dose. They will develop an understanding of the term radiation and how it relates to everyday life. The will simulate how radioactive material decays and apply the term half-life....

This article with embedded videos provides information about three main types of radioactive decay: alpha, beta, and gamma.

A lovely biographical piece about Ernest Rutherford. A number of personal notes, along with extensive information about the physics work he did. Nice quote at the end.

This site provides a great series on the neutron discovered by James Chadwick. Includes a seven-page series that covers what is inside the nucleus, the elusive neutron, beryllium radiation, Chadwick's discovery, neutrons from beryllium,...

By tracing the movement of radiation released during an accident at the Chernobyl nuclear power plant, students see how air pollution, like particulate matter, can become a global issue.

Very informative article about dirty bombs, containing a conceptual description of how they are made, along with a discussion of the potential health effects associated with a dirty bomb attack.

Explore medical breakthroughs in treating epilepsy. Discover how negative and positive particles behave in an electrically neutral environment, and perform an experiment to demonstrate how the human body can conduct electricity.