Energy

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Across
  1. 1. When the temperature of a hot and cold object becomes the same
  2. 2. Energy cannot be created or _______
  3. 4. These are materials that prevent the transfer of thermal energy by creating a barrier
  4. 7. This is the unit for energy
  5. 9. This is the type of energy stored in food and fuel
  6. 10. This word describes energy sources which are not being used faster than they are made
  7. 11. One of the most commonly used fossil fuels
  8. 15. This is the transfer of thermal energy between neighbouring particles in a solid
Down
  1. 1. The movement of electrons in a conductor possesses this form of energy.
  2. 3. _____ potential - the energy stored in objects at height
  3. 5. This is the type of energy stored in moving objects
  4. 6. When living remains are squashed under pressure for millions of years, they become ______
  5. 8. In convection, the heated air becomes less _____ and rises
  6. 10. This is the transfer of energy via electromagnetic waves, such as light
  7. 12. When an object is heated, the _____ gain energy and vibrate
  8. 13. The energy stored in decaying radioactive atoms
  9. 14. This is the transfer of thermal energy in a liquid or gas