Soils Review

Which horizon is outlined in red?

• O

• A

• B

• C

Tags

NGSS.MS-ESS1-4

Which soil horizon is outlined in the blue?

• O

• A

• B

• C

Which soil horizon is outlined in the green?

• O

• A

• B

• C

What is the structure type in the second horizon or the blue outline?

• Granular

• Platey

• Blocky

• Prismatic

• Structureless

Tags

NGSS.MS-ESS2-1

Which answer best fits the description for sand

• Mostly gritty, large pores, high permeability, low water holding capacity.

• Mostly gritty small pores, high permeability, low water holding capacity

• Mostly gritty large pores, low permeability, low water holding capacity

• Mostly gritty large pores, high permeability, high water holding capacity

Which answer best fits the description for silt (in comparison to clay and sand)?

• Smooth with large pores, lower permeability, low water holding capacity.

• Smooth with medium sized pores, lower permeability, low water holding capacity.

• Smooth with medium sized pores, lower permeability, high water holding capacity

• Smooth with medium sized pores, higher permeability, low water holding capacity.

What is the best fitting description for clay (in comparison to sand and silt)

• Sticky with no predominate grit or smoothness, small pores, high permeability, low water holding capacity.

• Sticky with no predominate grit or smoothness, small pores, low permeability, medium to high water holding capacity.

• Sticky with no predominate grit or smoothness, medium pores, high permeability, medium to high water holding capacity.

• Sticky with no predominate grit or smoothness, medium pores, medium to high permeability, low water holding capacity.

You can differentiate horizons by the following (there may be more that one check box):

• Color

• Texture

• Structure

• None of these

What causes soils to be black or dark brown (could be more than one check box)

• High organic material content

• Good water to air ratio

• More moisture potentially

• Iron Oxides

• All of the above

Why are soils usually gray or white (more than one check box)

• High OM

• High moisture in the soil

• Poor drainage

• Leaching

• None of the above