Soil Textural Triangle Worksheet (Page 2 of 3) in pdf

Clarifying Questions:

1. What is a soil texture triangle?

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2. What is one of the first things determined in doing soil analysis or examination?

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3. Describe the comparative sizes of gravel, sand, silt and clay.

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4. What is the soil parent material?

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5. How is soil classified?

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6. Why do farmers determine the texture and pH level ( acid 1-5, base 7-14) of their farm soil?

Think!_______________________________________________________________________

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7. How is iron oxide affected by humid climates?

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8. What is the cement in rocks in the desert?

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9. What is the cement in rocks in the arid or dry regions?

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Use the Soil Textural Triangle below to answer questions 10-13.

10. What type of soil is made of 10 % sand, 80 % clay, and 10% silt?

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11. What type of soil is made of 60% sand, 10% silt, and 30% clay?

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12. What type of soil is made of 50% sand, 40% clay,

and 10% silt?

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13. What kind of soil is made of 40% sand, 40% silt,

and 20% clay. It is the best soil for most plants.

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14. The three sides of the soil textural triangle are

represented by the percent (%) of sand, ___________,

and _____________

Video:

Soil Textural Triangle Worksheet Page 2