Science crossword

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Across
  1. 2. The only substance in nature that can be a solid, liquid and a gas
  2. 6. Loam is used to help grow
  3. 7. A mixture of humus, silt, sand and clay
  4. 8. Rocks that come out of volcanoes form the greater part of the Earth's crust.
  5. 9. Part of a plant where food is made
  6. 10. Chalk and limestone are _______ types of rocks
  7. 11. This soil can be seen only through a microscope
  8. 13. This soil is coarse and drains quickly
Down
  1. 1. A landform formed at the mouth of a river
  2. 3. Part of soil where humus is found
  3. 4. Moisture falls to the ground from clouds-this phenomena is called
  4. 5. Made up of broken pieces of dead plants and animals
  5. 12. This soil is red and brown in color and holds water
  6. 13. Contains Air, humus and tiny pieces of rock