viernes, 16 de noviembre de 2018

Science Vocabulary

SOIL VOCABULARY

Learn vocabulariy 
  1. Soil: contains weathered rocks (sand,slit,clay), organic matter, air and water
  2. Organic matter: decomposition plant and animal materials found in top soil.
  3. Soil composition: the ingredients that make up a sample of soil.
  4. Nutrients: essential elements required by and organism to grow and reproduce.
  5. Decompose: break down of plants, animals, etc. Into soil.
  6. Weathering: breakup of rocks caused by chemical or mechanical processes.
  7. Pieces of weathered rock: sand, silt and clay.
  8. Sand: largest particles, stay at bottom.
  9. Silt: medium particles.
  10. Clay: small particles, stay towards the top.
  11. Soil layers: organic, top soil, sub soil, parent material and bedrock.
  12. Top soil: weathered rocks (sand, silt, clay), organic matter, air and water.
  13. Sub soil: some chemical found in topsoil, not much organic matter.
  14. Parent material: slight broken up bedrock, no plant roots, very little organic matter.
  15. Bedrock: hard rock.
  16. Texture: how soil feels
  17. Grainy: large pieces, sand like.
  18. Silky: medium pieces, silt like.
  19. Sticky: small pieces, clay like.
  20. Color: chocolate brown, reddish brown, yellowish brown, grayish brown.
  21. Consistence: how easily soil breaks apart
  22. Loose: soil breaks apart when held.
  23. Friable: breaks apart with small amount of pressure from one finger.
  24. Firm: breaks apart with a lot of pressure from two fingers.

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