energy sources

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Across
  1. 2. a widely used and reliable fossil fuel that is easy to transport. Can come in many forms
  2. 5. energy from splitting an atom
  3. 7. a side effect of using energy that can harm the air or water
  4. 8. energy that comes from heat
  5. 9. the movement of electrons used to do work
  6. 10. non-renewable energy from many years of dead plants and animals
Down
  1. 1. sometimes called global warming, the increasing extremes of average temperatures
  2. 3. energy that you can make more of
  3. 4. the most common greenhouse gas
  4. 5. the cleanest of all fossil fuels
  5. 6. a disadvantage of this is that it creates a lot of CO2 and can cause black lung