Soils and soil layers

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Across
  1. 3. naturally hard substance,
  2. 4. part of the plant that conducts photosynthesis.,
  3. 5. This is the layer that plants thrive in. Here you will find plant roots, earthworms, and lots of tiny bugs that love life in the soil,
  4. 8. these organisms make mushrooms. Mushrooms are the fruit of this organism. Some types are used to make bread and carbonated beverages,,
  5. 11. soil that is made up of sand silt and clay,
  6. 14. The first horizon is the organic layer or labeled this,
  7. 15. heavier soil (often clay) and fewer nutrients. It is rich in minerals, which sometimes turn the soil a different color (like red or orange) because of oxidation (a chemical reaction when a metal like iron or aluminum comes into contact with water and oxygen; the same process that causes rust!),
  8. 17. known as topsoil,
  9. 18. these microorganisms can be one celled or many celled. They are larger than bacteria,
  10. 19. these help aerate the soil and break down the organic matter. Their feces along with other insects makes for rich soil.,
  11. 22. soil that is made up of sand,
  12. 24. occurs naturally and has a specific chemical make up,
  13. 25. can be vitamins, minerals or organic substances,
  14. 27. this is another word for protist,
Down
  1. 1. water moving materials through the soil,
  2. 2. matter such as dead leaves, plants, insects, and even animals,
  3. 6. horizon “B” with heavier soil (often clay) and fewer nutrients,
  4. 7. organic materials broken down into soil,
  5. 9. soil that is made up of calcium carbonate,
  6. 10. soil that is found below the A-layer and is heavier,
  7. 12. soil that is made up of decaying leaves and other plant material,
  8. 13. these are microscopic and can be spheres, rods or spiral shaped. There are good ones and bad ones for human and other organisms.,
  9. 16. to add air into something,
  10. 20. This soil tends to be very dark brown or even black in color, thanks to all the nutrients from the organic materials,
  11. 21. Earth's thick outer shell ,
  12. 22. soil that is made up of sand and clay,
  13. 23. Soil is divided into layers called this,
  14. 26. also commonly referred to as earth, is a mixture of organic matter, minerals, gases, liquids, and organisms that together support life of plants and soil organisms,