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Target: Grades 6-10
Length: 15 minutes
Guide: Available from the Central Operation of Resources for Educators (CORE) (440) 775-1400 http://core.nasa.gov
Internet: http://www.stsci.edu/resources
Using the movements of the Earth as an example, this program explains the distinction between rotation and revolution. Students are shown geocentric and heliocentric models of the solar system and are asked to identify the axes on rotating objects.
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