Taking the Measure of the Universe / PlanetQuest: The Search for Another Earth - Looking for Planets Without Seeing Them
The teacher prepares a model of a star and a planet. Students observe what happens to the star and planet as they rotate.

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This activity can also be found in:
Quilt: Science Grades: 5-8: E1 H1 9-12: H1 E1
Quilt: California Grades: 6-8: E2 9-12: E2