Unit 4 Vocabulary

1234567891011121314151617181920
Across
  1. 2. a long trip
  2. 5. an electrical wave sent through the air
  3. 10. a creature that may exist outside the Earth
  4. 14. a vehicle that can travel very fast
  5. 15. to look carefully to find out something
  6. 16. an object in space that travels around the sun, it leaves a bright long line in its path
  7. 18. the act of traveling around to discover a thing or place
  8. 19. station a vehicle that provides houses for astronauts and used for doing scientific tests
  9. 20. information, facts
Down
  1. 1. to talk about something with others
  2. 3. all things such as planets, stars, galaxies etc. that exist in space
  3. 4. a large object in space that moves around the sun
  4. 6. a person who has trained to travel in space
  5. 7. to discuss a topic in which two or more groups disagree and agree on
  6. 8. a large group of stars
  7. 9. the universe, outside the Earth
  8. 11. a vehicle that is used for travel in space
  9. 12. the gasses surrounding the Earth
  10. 13. to follow the curved path around something such as the sun
  11. 17. system the sun and planets that move around it