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Java Games: Flashcards, matching, concentration, and word search. |
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Chapter 20 Formation of the Solar System
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| A | B |
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| Core | The central part of the Earth below the mantle. |
| Crust | The thin, outermost layer of the Earth. |
| Mantle | The layer beneath the crust. |
| Revolution | The spinning of a body, such as a planet, on its axis. |
| Rotation | One complete trip along an orbit. |
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