Unit 7 - People and Resources

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Across
  1. 5. – The largest particles of rock that make up soil
  2. 6. – Particles of rock that are smaller than sand but larger than clay
  3. 7. – A mixture of water, air, tiny pieces of rock, and humus
  4. 8. – The smallest particles of rock that make up soil
  5. 10. – The remains of decayed plants or animals in the soil
  6. 11. – A resource that, once used, cannot be replaced in a reasonable amount of time
  7. 12. – A powder-like material that plants need to make
Down
  1. 1. – The use of less of something to make its supply last longer
  2. 2. – Anything from nature that people can use
  3. 3. – A resource that can be replaced within a reasonable amount of time
  4. 4. – Fuel formed from the remains of once-living things. Coal, oil, and natural gas are fossil fuels.
  5. 9. – Substances in soil that plants need to grow and stay healthy