THE UNIVERSE

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Across
  1. 2. The biggest planet in the Solar System
  2. 5. Large ball of ice and rock. They release gas as they warm up and we can see its tail.
  3. 8. The name of a comet in our Solar System
  4. 9. Pluto is a _ _ _ _ _ planet.
  5. 10. Body that orbit a star. They don't produce light.
  6. 11. The smallest planet in the Solar System.
  7. 13. Planet with 81 moons
Down
  1. 1. The nearest star to the Earth
  2. 3. It's called the "blue planet" because of the abundant water on the surface. Oceans covers
  3. 4. A group of stars an nebulae
  4. 6. It's called the "red planet". Iron minerals causes the soil and atmosphere to look red.
  5. 7. Meteors that crash into the surface of a planet.
  6. 11. Satellite
  7. 12. The path of the planets around the Sun. It has an eliptical shape.
  8. 13. They are made of hot gas and produce their own light