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How many days does it take the Earth to revolve around the Sun? The answer to this question and more are answered when using this gear-driven model representing the Sun, Moon, and Earth and their relationships. Daylight, night, seasons, and phases of the Moon are all effectively demonstrated. The arm is 15″ long Sun is 6″ in diameter Earth is 4″ in diameter the moon is 1″ in diameter. Includes Study Guide. Grades 3+, Ages 8+.
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🇺🇸 Ship from USA · On Agora since 2026
$249.99