Energy

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Across
  1. 6. the planet we live on
  2. 7. a kind of fossil fuel
  3. 9. a kind of energy where it is not sustainable; there is a limited amount of it, it's hard to find, expensive, and harmful
  4. 11. a source of energy made from things that would otherwise be thrown away
  5. 12. energy made from panels that absorb rays from the sun
Down
  1. 1. harmful chemicals trapped in the atmosphere, such as carbon dioxide
  2. 2. the effect fossil fuels and greenhouse gasses has on the earth that is heating and polluting it
  3. 3. a form of electricity made from running water
  4. 4. a form of energy that takes heat from down inside the earth
  5. 5. an energy where turbines are used to create electricity
  6. 8. the machine used to turn wind into energy
  7. 10. a kind of energy that is always available, easy to find, and cheap