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Unit 10
Earth, Sun, and Moon System
| Term | Definition |
|---|---|
| revolve | to go around, or orbit another object |
| orbit | the path of one object in space around another object |
| rotate | to spin on an axis |
| axis | the imaginary line around which Earth rotates |
| star | a huge ball of gases that produces its own light |
| satellite | any object that revolves around another object in space |