Check the Vocabulary!

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Across
  1. 5. a person who writes music
  2. 10. objects that travel around a star
  3. 12. sad
  4. 14. awesome
  5. 17. a backward direction
  6. 18. to look for information on a computer, especially on the internet
  7. 19. new, man-made creation
  8. 20. without turns or curves
Down
  1. 1. sweat
  2. 2. number
  3. 3. able to continue for a long time without damaging the environment
  4. 4. that makes you pay attention to it because it is so interesting and exciting
  5. 6. the condition of having many difficult parts
  6. 7. move up and down or side to side
  7. 8. an opinion based on general dislike or good feeling, rather than facts or reasons
  8. 9. the increase in speed of a thing that is moving
  9. 11. reuse
  10. 13. the parts used to build a machine or device
  11. 15. machine that gives you something
  12. 16. to move around quickly in a circle