Physics Revision crossword

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Across
  1. 3. the renewable energy source that is reliable
  2. 4. the polluting gas that causes acid rain
  3. 5. the type of areas geothermal power stations must be built in
  4. 7. the cost to take down a power station
  5. 10. a disadvantage of wind turbines
  6. 11. this is a measure of how much heat energy can pass through a material
  7. 13. this word describes the number of particles in a given area
  8. 14. the power station with the quickest start-up time
  9. 15. the process that creates energy in a nuclear power station
  10. 19. if this is larger, heat is lost quicker
  11. 20. this is when a liquid turns into a gas
  12. 22. this state of matter takes the shape of the bottom of the container
  13. 23. this is heat transfer by electromagnetic waves
Down
  1. 1. these are used on houses to heat up water
  2. 2. this is heat transfer in liquids & gases
  3. 4. the part of the national grid that increases the voltage
  4. 6. this is when a gas turns into a liquid
  5. 8. this type of material is good at conducting heat
  6. 9. this is a word used to describe a material that does not let heat pass through it
  7. 12. dull, black materials are good at this
  8. 16. the polluting gas that causes global warming
  9. 17. this is what metals have that make them good at conducting heat
  10. 18. a renewable fuel from living organisms
  11. 21. this state of matter is arranged in fixed positions