Cruisin' Cars Crossword!

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Across
  1. 4. What famous highway in the US is known as the Motheroad?
  2. 6. What type of park protects nature and wildlife across the US?
  3. 7. What colorful lights at an intersection let drivers know when to stop or go?
  4. 9. What sound does a car horn make?
Down
  1. 1. What do drivers use to turn their car left or right?
  2. 2. What vehicle with a large engine is often used to tow trailers or carry heavy loads?
  3. 3. What place along the highway lets travelers stop for gas and snacks?
  4. 4. What sign along Route 66 often tells people where they're going?
  5. 5. What do cars drive on that connects cities and towns?
  6. 8. How many wheels does a car have?