Dangers of Radiation Exposure

Gamma radiation, which is harmful, is useful in treating cancers. In the second lesson in a series of four, young scientists take surveys and calculate their yearly exposure to ionizing radiation. Then they read about how harmful their...

Why is the sun round? Examine this question, and others, with your pupils while teaching them how to live in a more earth-friendly environment. Pupils explore Sun composition and discuss how solar wind, sunspots, and solar energy affects...

Radioactive pollutants can enter the body through ingestion, inhalation, absorption, or injection. The last lesson in a series of 36 introduces pupils to radioactive pollution. They study its sources, both natural and man-made, its...

Students investigate the effects of radiation exposure and how it can effect objects on earth and space. They conduct research using a variety of resources and use the information to create a project that is reflective of good research...

Students discuss the types of ionizing radiation and explain Einstein's matter-energy equivalence.  In this investigative lesson students interpret equations and recognize the significance of scientists contributions. 

Radiation hazards are the subject of a short video that also includes a comparison of alpha, beta, and gamma rays, and the hazards if people ingest or absorb these rays through the skin.

NASA landed on the moon with computers less powerful than today's cell phones. An informative video offers an entertaining look at the dangers and concerns of being an astronaut. The cartoon graphics are amusing and the science is sound. 

Young scholars distinguish safe forms of radiation from those that are dangerous. They watch a video about sources of radiation encountered every day. They estimate their own annual radiation exposure.

Not all radiation is hazardous. Electromagnetic radiation is pure energy. Nuclear radiation comes from the atomic nucleus in which isotopes become unstable and radioactive. Share this video with your class to explore the types of...

Students investigate the dangers of radiation by exploring recent nuclear tragedies.  For this scientific debate lesson, students define the idea of radiation "half life" and determine if low doses of radiation are truly damaging to a...