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Unit 7 Lesson 1
| Term | Definition |
|---|---|
| atmosphere | a blanket of gas surrounding a planet |
| axis | real or imaginary line through the center of an object |
| eclipse | an event that occurs when one object in outer space blocks the sunlight reaching another object |
| hemisphere | half of the sphere of Earth is |
| universe | all objects and matter in space including Earth and beyond |
| planet | a round object in space that orbits a star |
| orbit | the curved path something in space takes around another object in space |
| solar system | the sun, other bodies like asteroids and meteors, and planets that orbit the sun |
| rotate | to turn about on an axis or a center |
| tilted | slanted or tipped to one side |