Science

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Across
  1. 2. An example of a renewable resource
  2. 5. An example of a man-made resource
  3. 7. A ___________ resource can regrow or be replaced within a person's lifetime.
  4. 8. ______________ panels store energy from the sun to produce electricity.
  5. 9. ___________ rain is one cause of chemical weathering.
  6. 10. Rocks being broken into smaller pieces by freezing and thawing is an example of __________________ weathering.
  7. 13. The layer of soil where plants grow best; contains a lot of humus
  8. 14. ____________________ fuels are a non-renewable resource.
Down
  1. 1. The breakdown of rocks
  2. 3. Another name for petroleum
  3. 4. An example of a natural resource
  4. 5. Fossil fuels include oil, _________ and natural gas.
  5. 6. The last layer of soil, which is made up of unweathered rock
  6. 11. The layer of soil below the topsoil
  7. 12. The decayed remains of once living organisms