Check the Vocabulary!

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