Our World Unit 4 Vocabulary: Life Out There

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