Soil Texture and Structure

What is a tool to determine soil texture using 3 percentages?

• Ribbon Test

• Texture Triangle

• pH Test

• Jar Test

What does the Ribbon Test test for?

• structure

• nutrients

• texture

• water holding capacity

What is decomposing plant or animal material in soil called (choose 2)?

• mineral matter

• parent material

• humus

• organic matter

Tags

NGSS.MS-LS2-3

Aggregate or soil cluster that is formed by tilling (not naturally in the soil).

• Ped

• Clod

Which soil particle is the largest and feels gritty?

• Sand

• Silt

• Clay

Which soil particle is the smallest, feels smooth, and gets heavy when wet (like a sponge)?

• Sand

• Silt

• Clay

What is a mixture of sand, silt and clay called?

• Loam

• Humus

• Sandy Clay

• Silty Sand

Which structure does water take the longest to percolate through?

• Single grain

• Blocky

• Platy

• Crumb

Tags

NGSS.MS-ESS2-4

This soil shape has rounded caps.

• Prismatic

• Granular

• Blocky

• Columnar

Soil shape or structure effects:

• Tilthe

• Permeability

• Water holding capacity

• all of the above

Tags

NGSS.MS-ESS2-4