4. It is made of fresh to partially decomposed organic matter. Soil Color Lesson and Activity - Developed by SSSA, this lesson and activity introduces the concept of soil colors and contains an activity on making Soil Crayons (from USDA). Lesson Plan – A Soil Profile. Lesson Plans. Even though it looks like a big bunch of brown stuff on the ground, soil is actually quite organized. If you’re in a forest, a garden, or other natural system that’s not a dry desert, you’ll generally see organic material like leaves on the ground. Painting With Soil. Grade Three: Curriculum Connections: Soils in the Environment. Water Quality and Concerns- Travis Kersten - 11/24/01. Dressing a Poinsettia - Diane Rundee 12/01. It naturally forms horizons, or layers of soil. This is future soil. Figure 1: A typical soil profile O Horizon: (1st layer) This is the top layer of soil. The color varies from brown to black. 5. Soil Crayons. Place spoons with each of the soil horizon/layer ingredients. Put a spoonful of candy-coated chocolates into the bottom of an individual cup; discuss what Parent Material is. A soil profile comprises 5 major soil horizons (i.e., layers). They are the O, A, B, C and R horizons. soil profile: a vertical view of the soil that displays the divided layers or horizons soil horizon: a layer of soil that forms from physical, chemical, and biological properties resulting from soil forming processes. Profiling soil isn’t the most colorful or exciting activity, but creating an edible representation of all the layers sure can be! Soil Glue (PDF; 2.9 MB) - Demonstrate how surface soil particles are held together by various organic substances (from the Soil Quality Team).. When a vertical section of these many horizons is taken, its known as a soil profile. Page 10. Demonstrate making the soil horizons of your edible soil. Introduction to the Soil Purpose Through this hands on lesson, students will understand the soil horizons and determine their properties. Each layer is distinguishable by certain characteristics. Soil Water (PDF; 1.0 MB) - Demonstrate how water either enters the soil or runs off over the soil surface (from the Soil Quality Team).. Soil Origin and Development - Nancy Williams - 11/8/01. Students will complete this by using a note taking device, exit slip, reading You will need: Brent Niemeyer Series 2/8/02 reason soil horizons are different as you dig deeper is because of mixing of organic material in the upper horizons and weathering and leaching in the lower horizons. They will also explain the difference between a soil profile, horizon, and layer. These horizons run parallel to the ground and serve up distinct characteristics that aid the layers above and below. Soil and Plants - Nancy Williams - 11/8/01. 6. Turf Grass - Reynold Gardner - Junction City, OR 12/01. Repeat this procedure with the pudding (Subsoil), followed by cookie Soil Texture (sand, silt, and clay) – USDA-NRCS K-12 Lessons A flow chart to identify soil texture (from the texture triangle) by feel, using a soil sample and water. soil: "A living, dynamic system at the interface between air and rock. A soil profile is the layers of soil on the top of the Earth that are called O, A, B, C and R horizons. Physical Properties of Soil - Nancy Williams - 11/8/01. Erosion, deposition, and other processes might also affect the way a soil profile looks at a particular location. The Color of Soil. Lesson 5. SOIL PROFILE HORIZONS • O Horizon — organic layer of leaves, roots, and decaying material • A Horizon — Topsoil • B Horizon — Subsoil • C Horizon — Substratum • R Horizon — Bedrock or solid rock below the C Horizon Animal, Plant, and Soil Science Lesson Plan Library Unit C. Problem Area 6. Put a spoonful of candy-coated chocolates into the bottom of an individual cup discuss... 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