Earth&Space

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Across
  1. 2. what holds the planets in orbit around the sun?
  2. 5. In which Galaxy our Solar System is located?
  3. 6. Earth has 3 layers: Crust,Core and?
  4. 7. What is the study of Space and Matter?
  5. 9. Which layer protects earth from harmful Solar radiation?
Down
  1. 1. Earth atmosphere is made up of 78%____?
  2. 3. Earth is the only planet to support?
  3. 4. 70% of the earth is made up of?
  4. 6. What is the natural Satelite of the Earth?
  5. 8. Earth is the 3rd planet from the?