Describe the source of soil.
	Explain how the different properties of soil affect plant growth.
	Describe how various climates affect soil.

Assignment:  Discuss outline.  Quiz - From Bedrock to Soil.

	Determine the color of soil sample.
	Observe whether soil is loose, friable, or firm.
	Create a water-and-soil column.

Assignment:  Soil color.  Soil consistence.

	Investigate the pH of soil.
	Determine whether the soil is acidic, basic, or neutral.
	Accurately test the acidity of soil.
	Gather evidence to show that soils are made from a mixture of different-sized materials.
	Classify the soil as sand, silt, or clay.
	Use common units of measurement to collect data.
	Determine that soils from different environments have different compositions and properties.

Assignment:    pH of soil.  Soil Texture test #1 and #2.

	Gather evidence to show that soils are made from a mixture of different-sized materials.
	Classify the soil as sand, silt, or clay.
	Investigate the composition soil by separating it into layers with water.
	Observe a water-and-soil column.
	Use common units of measurement to collect data.

Assignment:  Soil Texture test #3 - Soil Columns.  Soil Triangle.

	Gather evidence to show that soils are made from a mixture of different-sized materials.
	Classify the soil as sand, silt, or clay.
	Investigate the composition soil by separating it into layers with water.
	Observe a water-and-soil column.
	Use common units of measurement to collect data.

Assignment:  Soil Texture test #3 - Soil Columns.  Soil Triangle.