ENERGY

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Across
  1. 3. Living things within the ecosystem.
  2. 4. Energy from the sun is converted into thermal and electric energy.
  3. 7. Energy from natural resources.
  4. 11. the ability to maintain or support a process continuously over time
  5. 13. Oldest and largest source of renewable energy.
Down
  1. 1. Sources that will not run out.
  2. 2. the inputs we use to produce goods and services
  3. 5. Heat within the earth.
  4. 6. Raw materials used from the earth.
  5. 8. A form of renewable energy that uses power from the wind.
  6. 9. A term for non-renewable energy such as coal.
  7. 10. Limited in size.
  8. 12. Non-living things within the ecosystem.