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Wednesday, October 12 th

Wednesday, October 12 th. Lets Look at your Soils… Question of the day: Who was the character in the Peanuts comic strip who had the cloud of dust following him around? Ans : Pigpen. Pigpen. Why is he so dirty? Because he is so familiar with soil!

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Wednesday, October 12 th

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  1. Wednesday, October 12th Lets Look at your Soils… Question of the day: Who was the character in the Peanuts comic strip who had the cloud of dust following him around? Ans: Pigpen

  2. Pigpen Why is he so dirty? Because he is so familiar with soil! Today we will get to know more about soil as well.

  3. Soils Soils are arranged in layers called horizons The darkest, most nutritious layer is called the “TOPSOIL” Under that is the “SUBSOIL”

  4. Soils Topsoil Subsoil Weathered Rock Please draw this in your notebook!

  5. Soil Horizons

  6. Sand vs. Soils Which is soil? How is soil different than sand?

  7. How is Sand formed? Through weathered rock…

  8. Soil vs. Sand Soils has three different sized particles in it:Sand Silt Clay Sand has…well…sand sized particles

  9. Soil Particles Depending on how much sand, silt, and clay a soil has…we can give it a name. This is called a ‘soil type’ SandSilt Clay

  10. Let’s look at some soil particles. I’m going to hand out jars to each table. DO NOT shake or open the jars

  11. Soil Particles Depending on how much sand, silt, and clay a soil has…we can give it a name. This is called a ‘soil type’ SandSilt Clay

  12. Soil Types Estimate the % of your soil that is sand,write this number down. What % is silt? What % is clay?

  13. Soil Types Now compare your percentages to the chart below and give your soil a type.

  14. Let’s look at the soil you brought in today I will collect the jars of soil you have been using…take out the soil you brought from home

  15. Soil from Home Slowly pour out your soil onto a paper towel. Answer these questions about your soil in yournotebook. 1. Describe the things you see in your soil

  16. Soil from Home Look at the other soils at your table. 2. List three things all the soils have in common. 3. List three differences in the soils at your table.

  17. Soil Types If a soil is very sandy, what type of area might it have come from? How about a soil with littleorganic matter? A soil with a lot of organic matter?

  18. Soil Field Test Lastly…let’s get dirty! I will hand out the soil type field test and we will see what type of soil you have.

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