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Earth, moon and sun  
The nature of science  
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Learners will listen to the story of an actual meteorite fall, participate in a brainstorm session intended to focus their interest on and arouse their curiosity about meteorites, view a slide show that provides background information, and compose a... (View More)

Keywords: Meteorites
Audience: Elementary school, Middle school, High school
Materials Cost: Free

In this activity, learners will investigate and try to explain various lunar anomalies. They will present hypotheses (both written and oral) and then debate the merits of each hypothesis, with no right or wrong answers. This activity is in Unit 2 of... (View More)

Audience: Elementary school, Middle school, High school
Materials Cost: Free

Learners will identify existing government agencies charged with safeguarding water quality, their geographic jurisdiction, and their subjects of concern, such as water quality laws, information, testing, and enforcement, and identify water quality... (View More)

Audience: Middle school, High school
Materials Cost: Free per student
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