Weathering/Soil and a bit more!

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Across
  1. 4. bottom layer of the soil
  2. 7. rock is broken apart in first step of soil formation
  3. 8. a testable prediction
  4. 12. materials dissolved in water and carried down through soil
  5. 13. it's scientific and used to experiments
  6. 14. or test your hypothesis with the steps in your experiment
  7. 16. weathering and making a new substance
  8. 20. unique composition and there are 4000 of them
Down
  1. 1. we do this when we evaluate our results in an experiment
  2. 2. mixture of minerals, mineraloids, and organic matter
  3. 3. physical means to weather ex. plant roots
  4. 5. imaginary point on the globe that separates the north from the south
  5. 6. conditions like hot and tropical create an optimal chemical change
  6. 9. what the three layers of soil are called
  7. 10. area of rock that can be altered chemically after being broken down mechanically
  8. 11. darkest layer of the soil with organic remains
  9. 15. when ice breaks apart the rocks
  10. 17. a delicious spread made with peas of chicks or chickpeas
  11. 18. moves weathered rock to a new location
  12. 19. where animals graze and farmers grow crops