Combustion

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Across
  1. 2. The scientific name for burning: _______________.
  2. 4. A fuel, oxygen and ______________ are needed for a fire to burn.
  3. 5. _______________ is the liquid fossil fuel.
  4. 9. The gas needed for a fire to burn: _______________.
  5. 11. A fire _______________ can be used to put out a fire.
  6. 12. A material that is burnt in order to release heat or light energy: _______________.
Down
  1. 1. A material made of particles that are far apart and moving randomly in all directions: _______________.
  2. 2. ______________ is the solid fossil fuel.
  3. 3. The three things needed for a fire to burn are known as the fire _______________.
  4. 6. A gas made when a fuel burns: _______________ _______________.
  5. 7. The fuel in a candle: ____________________.
  6. 8. _______________ fuels were formed underground from animals and plants that died millions of years ago.
  7. 10. gas is a fossil fuel.