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Draw this on page 82 – Leave room on the side to write notes.

Draw this on page 82 – Leave room on the side to write notes. Bedrock. R Horizon: Bedrock: The underlying rock of an area. Usually granite or basalt. Forms first. Weathered Bedrock. C Horizon: Weathered Bedrock – bedrock weathers to large pieces of rock where plants can grow. Forms second.

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Draw this on page 82 – Leave room on the side to write notes.

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  1. Draw this on page 82 – Leave room on the side to write notes.

  2. Bedrock R Horizon: Bedrock: The underlying rock of an area. Usually granite or basalt. Forms first.

  3. Weathered Bedrock C Horizon: Weathered Bedrock – bedrock weathers to large pieces of rock where plants can grow. Forms second R Horizon: Bedrock – The underlying rock of an area. Usually granite or basalt. Forms first.

  4. Subsoil B Horizon: Subsoil – layer of soil that is leached of nutrients. Forms fourth C Horizon: Weathered Bedrock – bedrock weathers to large pieces of rock where plants can grow. Forms second R Horizon: Bedrock – The underlying rock of an area. Usually granite or basalt. Forms first.

  5. Topsoil A Horizon: Topsoil – layer of nutrient rich soil forms third B Horizon: Subsoil – layer of soil that is leached of nutrients. Forms fourth C Horizon: Weathered Bedrock – bedrock weathers to large pieces of rock where plants can grow. Forms second R Horizon: Bedrock – The underlying rock of an area. Usually granite or basalt. Forms first.

  6. Litter O Horizon: Litter – a layer of organic material that has not yet decomposed A Horizon: Topsoil – layer of nutrient rich soil forms third B Horizon: Subsoil – layer of soil that is leached of nutrients. Forms fourth C Horizon: Weathered Bedrock – bedrock weathers to large pieces of rock where plants can grow. Forms second R Horizon: Bedrock – The underlying rock of an area. Usually granite or basalt. Forms first.

  7. Soil Profile • We just made a soil profile. • The profile is “ideal”. Not all places have all of the layers.

  8. Soil Lab Conclusions – page 83 • What are the steps in soil formation? • What are the five layers of soil called and their horizon name? • How is our soil profile like a real soil profile? How is it different from a soil profile? • Did we model chemical or mechanical weathering when making the C-Horizon? • Write one paragraph about what you learned in this lab.

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