Sources of Energy

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Across
  1. 1. chemical compounds that contain carbon and hydrogen atoms
  2. 7. formed from the remains of small animals, algae, and other organisms that lived millions of years ago
  3. 9. another name for oil
  4. 10. energy produced from the splitting of atoms
  5. 11. energy rich substances formed from the remains of dead organisms
  6. 12. mixture of methane and other gases that is mined by pipelines
Down
  1. 2. fuel made from living things
  2. 3. produced by flowing water
  3. 4. a substance that provides energy, such as heat, light, motion, or electricity
  4. 5. energy produced by moving air
  5. 6. energy from the sun
  6. 8. energy from Earth's interior