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Photo of the Moon (1)

0
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Photo of Mars

0
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Invisible Objects

0
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Circular Motion (Lesson Plan)

4
Average: 4 (1 vote)
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Space Simulator

4
Average: 4 (2 votes)
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Our Solar System

3
Average: 3 (3 votes)
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Charles Wagon

4
Average: 4 (2 votes)
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Can we leave for Mars today?

4.25
Average: 4.3 (4 votes)
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Build a Solar System

4
Average: 4 (2 votes)
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Determination of Asteroids rotation periods (Lesson Plan)

4
Average: 4 (2 votes)
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