crossword puzzle

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Across
  1. 2. A narrow boat that is moved using a wooden paddle
  2. 5. A special boat that can travel deep under water
  3. 6. A long vehicle that runs on metal tracks and carries many passengers
  4. 7. A vehicle that floats on a cushion of air over water
  5. 8. A powerful vehicle that carries astronauts in to outer space
Down
  1. 1. A large boat used to carry people and cars across a river
  2. 3. An emergency vehicle with sirens that takes sick people to the hospital
  3. 4. An aircraft with rotating blades that allow it to take off vertically