7 Science Revision- Sustainability

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Across
  1. 5. energy fossil fuels: coal, petroleum, and natural gas
  2. 7. replenished on a human timescale, such as sunlight, wind, rain, tides, waves, and geothermal heat.
  3. 10. underground water
  4. 11. the conversion of a vapor or gas to a liquid
  5. 12. scientists who study organisms
Down
  1. 1. the cycling of water
  2. 2. sun energy
  3. 3. black rock found mainly in underground seams and used as fuel
  4. 4. rain, snow, sleet, or hail
  5. 6. evaporation from plants and animals
  6. 8. the water or other material that drains freely off the surface of something
  7. 9. The process of turning from a liquid into vapor