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Soil!

Soil!. By: Oksanna Loya. Soil!. Soil is a thin layer ontop of most of the Earth’s land surface. This thin layer is a basic natural resource which deeply affects every other part of the ecosystem.

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Soil!

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  1. Soil! By: Oksanna Loya

  2. Soil! • Soil is a thin layer ontop of most of the Earth’s land surface. • This thin layer is a basic natural resource which deeply affects every other part of the ecosystem. • Soils are composed of three main ingredients: minerals of different sizes, organic materials from the remains of dead plants and animals, and open space that can be filled with water or air.

  3. Soil components • All ingredients making soil.

  4. Soil Components Contd. • Clay- very fine particles. Compacts easily. Forms large, dense clumps when wet. • Gravel- Coarse particles. Consists of rock fragments. • Loam- About equal mixtures of clay, snad, silt, and humus. • Sand- Sedimentary Material coarser than silt. • Silt- sedimentary material consisting of very fine particles.

  5. Factors of Soil! • Parent Materials- the rock and minerals from which the soil derives. • Climate- measured by precipitation and temperature. • Living Organisms- Includes many things from fungi, to worms that can help decompose litter. • Topography- physical characteristics of the location of the soil.

  6. Soil Pathways

  7. Soil Horizons or Layers

  8. Soil Food Web

  9. Organic vs. Inorganic Fertilizers • Organic-Three common forms: animal manure, green manure, and compost. Helps prevent erosion of soil. • Inorganic- Does not add humus to soil, resulting in less ability to hold water. Supplies only a limited number of nutrients.

  10. 2 External Links and Video link! • http://www.kidsgeo.com/geology-for-kids/0009-components-of-soil.php • http://www.epa.gov/gmpo/edresources/soil.html • http://youtu.be/uS7zfeK4OTQ

  11. Review Questions! • 1. What components make up soil? • A- air, water, rock, minerals • B- wind, air, water, rock • C- air, water, organic matter, minerals

  12. Review Questions! • 1. C

  13. Review Questions! • 2. What type of layer is soil on earth? • A-Thick • B-Thin

  14. Review Questions! • 2. B

  15. Review Questions! • 3. What is clay? • A- Coarse Particles • B- Sedimentary Material • C- Very fine particles • C

  16. Review Questions! • 3. C

  17. Review Questions! • What is Gravel? • A- Very fine particles • B- equal mixtures of clay, sand and silt. • C- Coarse particles

  18. Review Questions! • 4. C

  19. Review Questions! • What is Loam? A- Very fine particles B- equal mixtures of clay, sand, and silt C- Sedimentary material

  20. Review Questions! • 5. B

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