Vocab Week 7

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Across
  1. 1. A large group of natural organic compounds
  2. 3. Rock that is ground more finely than gravel, but is not as fine as silt
  3. 4. A weak unstable acid
  4. 7. A scientist who studies origins
  5. 8. A secondary mineral deposit of calcium carbonate or another mineral
Down
  1. 2. A secondary mineral deposit of calcium carbonate or other mineral
  2. 5. A mixture of mineral particles and organic material,
  3. 6. Mud or fine earth deposited from running or standing water
  4. 9. A mineral substance made up of small crystals of silica and alumina