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Life sciences  
Learning Time:
1 to 2 hours  
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In this lesson about cosmic rays, students will describe why cosmic rays are dangerous to astronauts. Includes information about student preconceptions. This is activity 3 of 4 from The Cosmic Ray Telescope for the Effects of Radiation (CRaTER).

Audience: Middle school
Materials Cost: Free

In this activity, student teams create a knowledge map of the essential characteristics or factors of a planet with a habitable climate, identifying range of inputs, outputs and variables of a planetary environmental system. Identified... (View More)

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