Across
- 4. Fireball passing through space.
- 8. The sets of stars are called.
- 9. It is the center of our system and gives us heat.
- 11. It appears when the sun and moon align.
- 13. Piece of stone that flies through space at high speed.
- 14. Lights that appear in the sky in very cold places.
- 17. They are the people who go inside the rocket into space.
- 19. The person who studies space is called.
- 20. It is before going out into space and it is blue.
Down
- 1. The outer layer of the earth that gives us gravity.
- 2. We live in a.
- 3. Object with which you can see the stars.
- 5. The natural satellite of the earth is the.
- 6. Large piece of metal that travels into space.
- 7. The planet that has a ring is called.
- 10. The red planet is.
- 12. They are small planets and have a lot of light.
- 15. Organization that studies space and commands rockets.
- 16. It is what makes us be on the floor and not float.
- 18. It is what we breathe and what prevents us from dying.