The Earth’s Crust Soil
<ul><li>Once rocks have been weathered into small enough sediments, soil can begin to form. </li></ul>
<ul><li>Soil  – a mixture of:  </li></ul><ul><li>weathered rock (sediments) </li></ul><ul><li>organic matter (living and d...
<ul><li>Rock is turned into sediment and mineral fragments by weathering… </li></ul><ul><li>… but it is not considered soi...
<ul><li>Compost  – dead and decaying plant matter. </li></ul>
 
<ul><li>Compost mixed with rocks and mineral is called  humus , which forms the dark coloured part of the soil which is ve...
<ul><li>Fertile soil  – soil that provides nutrients for plant growth.  </li></ul><ul><li>We add fertilizers to soil to ma...
<ul><li>Plants need three nutrients to grow properly: </li></ul><ul><li>N - nitrogen </li></ul><ul><li>P - phosphorus </li...
Different bags have different amounts of N, P or K depending on what you need.  If you put too much of any one of these ch...
<ul><li>Soils can take thousands of years to form.  They can range in thickness from 60 meters in some areas to just a few...
<ul><li>Soil profile  – a picture of what the layers of soil look like underground.   </li></ul>
<ul><li>Soil profile </li></ul>
<ul><li>Soil profiles will look different from area to area.  </li></ul><ul><li>You can make a soil profile by digging and...
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The Earth’S Crust #9 Soil

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The Earth’S Crust #9 Soil

  1. 1. The Earth’s Crust Soil
  2. 2. <ul><li>Once rocks have been weathered into small enough sediments, soil can begin to form. </li></ul>
  3. 3. <ul><li>Soil – a mixture of: </li></ul><ul><li>weathered rock (sediments) </li></ul><ul><li>organic matter (living and dead material) </li></ul><ul><li>minerals </li></ul><ul><li>water </li></ul><ul><li>and air. </li></ul>Make up a memory sentence with actions and write it down in the blank provided.
  4. 4. <ul><li>Rock is turned into sediment and mineral fragments by weathering… </li></ul><ul><li>… but it is not considered soil until plants and animals live, die, and decay in it. </li></ul><ul><li>(e.g. leaves, insects, twigs, worms, bacteria, etc) </li></ul>
  5. 5. <ul><li>Compost – dead and decaying plant matter. </li></ul>
  6. 7. <ul><li>Compost mixed with rocks and mineral is called humus , which forms the dark coloured part of the soil which is very fertile. </li></ul>
  7. 8. <ul><li>Fertile soil – soil that provides nutrients for plant growth. </li></ul><ul><li>We add fertilizers to soil to make sure it has all of the nutrients for plants to grow. </li></ul>
  8. 9. <ul><li>Plants need three nutrients to grow properly: </li></ul><ul><li>N - nitrogen </li></ul><ul><li>P - phosphorus </li></ul><ul><li>K - potassium) </li></ul>
  9. 10. Different bags have different amounts of N, P or K depending on what you need. If you put too much of any one of these chemicals in the soil, it could kill your plants. <ul><li>On the side of a fertilizer bag you’ll see three numbers. </li></ul><ul><li>Example </li></ul><ul><li>15 - 5 – 5 </li></ul><ul><li>N P K </li></ul><ul><li>Each number stands for how much nitrogen, phosphorus, or potassium the fertilizer has in it. </li></ul>
  10. 11. <ul><li>Soils can take thousands of years to form. They can range in thickness from 60 meters in some areas to just a few centimeters in others. </li></ul><ul><li>Soil varies in structure and appearance, depending on its depth. These different layers of soil can be mapped to make a soil profile. </li></ul>
  11. 12. <ul><li>Soil profile – a picture of what the layers of soil look like underground. </li></ul>
  12. 13. <ul><li>Soil profile </li></ul>
  13. 14. <ul><li>Soil profiles will look different from area to area. </li></ul><ul><li>You can make a soil profile by digging and exposing a vertical edge of the soil or you can drill a core sample using a soil sampler </li></ul>
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