The Earth in Orbit

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Across
  1. 3. The farthest planet from the Sun.
  2. 8. The imaginary line Earth spins around.
  3. 9. A large object that orbits a star, like Earth.
  4. 10. The biggest planet in our solar system.
  5. 11. The path a planet takes around the Sun.
  6. 12. Once a planet, now called a dwarf planet.
  7. 13. The star at the centre of our solar system.
Down
  1. 1. The closest planet to the Sun.
  2. 2. A huge group of stars, like the Milky Way.
  3. 4. The only known planet to support life.
  4. 5. A tool scientists use to look at stars and planets.
  5. 6. The force that keeps planets in orbit and our feet on the ground.
  6. 7. A person who travels into space.