Rocks, Minerals and Soil

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Across
  1. 3. A natural, solid substance with its own chemical makeup.
  2. 4. A small piece or chunk of rock.
  3. 5. Soil that is dark, spongy, and rich in decayed plants.
  4. 6. A solid material made of one or more minerals.
  5. 8. Soil made up mostly of sand grains, dry and gritty.
Down
  1. 1. A type of rock formed when heat and pressure change other rocks.
  2. 2. A type of rock made from layers of sand, mud, or small pieces of other rocks.
  3. 3. A type of rock formed when melted rock (magma or lava) cools and hardens.
  4. 4. Soil with very fine particles, smoother than sand but not sticky.
  5. 7. Soil with very tiny particles that hold water and feel sticky.