natural hazards

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Across
  1. 4. a prolonged period without rain
  2. 5. a storm associated with lighting and thunder ouccuring with cumulonimbus
  3. 7. shaking of the ground that is generted by disurbtances in the earths crust
  4. 8. a fire burning out of control in the open
  5. 11. a surface where a cool air mass meets a warmer mass
Down
  1. 1. used to measure the energy of earthquakes
  2. 2. the edge of a fire that spreads fastest
  3. 3. part of a river valley covered by water during floods
  4. 5. cyclone a severe weather event that occurs where warm,moist rising air begins to spiral upwards
  5. 6. aerially burning fuel that blows ahead of a fire front
  6. 9. a prolonged period of very hot weather
  7. 10. water that overflows from rivers,lakes and the ocean onto land that is not normally covered by water