Transportation Riddles

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Across
  1. 3. People call me when they need help. I have a siren. I carry people to the hospital.
  2. 5. I'm big. I carry lots of people. I sail on the sea.
  3. 6. I have two wheels. I can carry one or two people. I'm fast.
  4. 8. I have a loud whistle. I carry lots of people. My wheels roll only on rails.
Down
  1. 1. I have two wheels. I have a pedal on each side. You can ride on me.
  2. 2. I have many seats. I'm long. I carry lots of people.
  3. 4. I carry passengers from city to city. I can fly. I land at airports.
  4. 7. I'm fast. I have four wheels. You have to use wear a seatbelt when you use me.