Unformatted text preview: Clicker Question #2: Galileo A. was the first to use a telescope for astronomy. Clicker Question #3: What couldn't ancient civilizations have known? B. Time it takes for one of Jupiter's moons to go once around the planet. Clicker Question #4: Which ellipse and orbit most closely resembles Earth's true situation? C. (very circular, Sun in the middle.)...
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- Fall '08