CO2 Car Crossword Puzzle

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Across
  1. 3. The kind of wood used to make the cars
  2. 5. who had 3 laws for aerodynamics
  3. 9. what we do to the back of the car to make it go faster.
  4. 10. what area of science we studied to make the cars go faster.
  5. 12. smooths out the car before we paint it
  6. 13. what there is between the wheels and the floor that slows the car down
  7. 14. what the wheels go on to
Down
  1. 1. screws into bottom of car so it stays on the track
  2. 2. The type of line used as the track
  3. 4. what we compare the air to as it flows over the car
  4. 6. what keeps the wheels away from the body of the car
  5. 7. what acts as a bearing for the axles
  6. 8. what you do to your care to make it pretty
  7. 11. Fuel source for the CO2 cars