Fossil Fuels

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Across
  1. 1. Drop off
  2. 5. Used in steam engines
  3. 7. Long tunnels
  4. 9. Used to dig into the earth
  5. 12. Cleaning
Down
  1. 2. Removal
  2. 3. Used by miners
  3. 4. Used in meany cars
  4. 6. Digging deep in the earth
  5. 8. Found deep under ground
  6. 10. Out in the water
  7. 11. Boom