Across
- 3. to find somebody or something that was hidden.
- 6. the sun and the other planets.
- 9. very bad weather often with strong winds, rain, thunder and lightning.
- 11. air that moves quickly as a result of natural forces.
- 12. unable to find your way / not knowing where you are.
- 15. a large group of stars held together by gravitational forces.
- 17. a vehicle that travels in space.
- 18. the outside or top layer of something.
- 19. full of light / shining strongly.
- 20. a large round object that moves around a star (such as the Sun).
Down
- 1. all of space and everything in it.
- 2. a path that a planet or moon makes when it goes around a sun or another planet.
- 4. the air and other gases that surround the earth.
- 5. an act of traveling to a place and not coming back.
- 6. a series of electrical waves that carry sounds, pictures or messages often used to tell people where to go.
- 7. a person who travels in a spacecraft and works in outer space.
- 8. an act of travelling from one place to another that is far away.
- 10. the planet that we live on.
- 13. a picture or photograph.
- 14. to go from one place to another, especially over a long distance.
- 16. a substance like air that isn't solid like a rock or a liquid like water.
- 17. the area outside of the earth where all the other planets and stars are.