C2s2 How Soil Forms - Vocabulary Quiz

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Across
  1. 3. The solid layer of rock beneath the soil.
  2. 5. Rich , fertile soil that is made up of about equal parts of clay, sand, and silt.
  3. 6. The loose, weathered material on Earths surface in which plants can grow.
  4. 7. Mixture of humus, clay and other minerals that forms the crumbly , topmost layer of soil.
Down
  1. 1. The layer of soil beneath the topsoil that contains mostly clay and other minerals
  2. 2. A measure of how well soil supports plat growth.
  3. 4. Dark-colored organic material in soil.
  4. 6. horizon The layer of soil that differs in color and texture from the layers above it and below it.