Across
- 5. Where people live and work in space
- 7. The area outside Earth is called ____
- 10. The path a planet follows around the sun
- 12. Earth is the name of our ___.
- 14. The bubble of oxygen and gasses around the earth
- 15. A word to talk about things we're not sure of
- 16. Some people think we may find these living things on another planet someday
Down
- 1. The sun and nine planets make up our ___ ____
- 2. Different ways to share information
- 3. Facts or information can also be called ___
- 4. The whole of infinite space, neverending
- 6. A cloud of rock or ice that looks like it has a tail
- 8. When you take a trip, you could call it a ____
- 9. A person who trains to go up in space
- 11. Many solar systems together form a _____
- 13. What people do when they don't agree on a topic
- 17. A powerful ___ is needed to send things into space