Science Crossword

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Across
  1. 3. zone of complete combustion
  2. 9. unit to measure energy
  3. 10. this grows in savannah
  4. 13. evaporation+condensation = pure water
  5. 14. splitting up of white light into seven constituent colours
  6. 15. tyre of a moving vehicle becomes hot due to
  7. 16. this should not be used for oil fire
  8. 17. solid water
  9. 19. top carnivore in a grassland food chain
  10. 20. incomplete combustion produces this gas
  11. 21. measures temperature
  12. 24. water exists in abundance on this planet
Down
  1. 1. rocks which contain water
  2. 2. organisms which feed upon dead matter to get energy and give back the nutrients to the soil
  3. 4. gaseous fuel
  4. 5. rise in the temperature of earth
  5. 6. process of converting saline water into fresh water
  6. 7. amount of heat liberated whenn 1 kg of fuel is burt completely
  7. 8. process by which sun produces energy
  8. 11. purest form of water
  9. 12. rain with oxides of sulphur and nitrogen dissolved in water
  10. 15. a network of interlinked food chains
  11. 18. sahara is an example for this biome
  12. 22. this energy can be felt and not seen
  13. 23. herbs, lichens, reindeers, owls and foxes are found in this biome