Rocks and soil crossword

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Across
  1. 1. measures how acidic soil is
  2. 3. rocks formed when magma cools
  3. 5. formed when sediments compact together
  4. 7. when the elements break down rocks
  5. 9. best for growing plants in
  6. 10. the size of the particles in soil that change how it can feel
  7. 11. rocks that are formed by constant heat and pressure
  8. 12. very nutrient-rich soil
Down
  1. 1. rock that breaks off and moves upward for better upper soil
  2. 2. how good dirt is to grow plants in
  3. 4. tiny crystals with definite element composition
  4. 6. lowest level, impossible to break in Minecraft
  5. 8. when broken rocks are carried around by wind or water