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Type: Fill-In-The-Blank
Category: The Moon
Level: Grade 7
Score: 1
Author: MsJanssen
Last Modified: 6 years ago

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The Moon Question

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Grade 7 The Moon

The current theory for the origin of Earth's moon is that a large,              Mars-sized              object collided with Earth while Earth was still           forming          . The collision was so violent that part of Earth's          mantle          was blasted into orbit around Earth to form the Moon. This theory is consistent with the composition of the         lunar         rocks brought back by the           Apollo            missions.