Create a water-and-soil column.
	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:  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.

	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:  Analyze and Conclude soil lab.  Rubric.

	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.
	Explore the history of the Dust Bowl.
	Examine the history of settlement in the Great Plains.
	Analyze the farm practices that turned grasslands and wilderness into cropland.

Assignment:  Soil Lab due.  View Surviving the Dust Bowl.