Solar System

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Across
  1. 4. When a planet travels one full path around the Sun.
  2. 6. The spinning of a planet on its axis.
  3. 7. A huge, glowing ball of gas that gives off light and heat.
Down
  1. 1. A natural object that goes around a planet.
  2. 2. All the planets, moons, and other objects that go around our star together.
  3. 3. A large object that moves around a star, like Earth.
  4. 5. The path an object takes as it travels around something else.
  5. 7. Everything outside Earth’s atmosphere.