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Motions: Orbits, Phases, and Seasons
Grade Level: 5-8, 9-12
Science Education Standards: Science as Inquiry -- Content Standard A
History and Nature of Science -- Content Standard G
Short Description: Students use the Slooh Online Observatory to investigate the phases of Venus, and explore how Galileo's observations of Venus helped to revolutionize our understanding of the solar system by demonstrating that Venus must orbit the sun rather than Earth. See how students can make the same set of enlightening observations.
Source: Astronomical Society of the Pacific