Soil Quiz Review

Which lists the soil types from largest to smallest grains?

• Sand, Silt, Clay

• Clay, Sand, Silt

• Silt, Sand, Clay

• Sand, Clay, Silt

Which type of soil is made up of decayed parts of once-living organisms and is dark, soft, and crumbly?

• Silt

• Sand

• Humus

• Clay

Joe uses a filter to separate different types of dry soil. Which soil type would go through the filter with the smallest holes?

• Clay

• Humus

• Igneous

• Sand

What type of soil has large grains, lets water leave quickly, and feels gritty?

• Clay

• Humus

• Sand

• Silt

In a soil profile, layer O is known as:

• Subsoil

• Topsoil

• Weathered bedrock

• Organic Material

List the soil horizons in order from top to bottom:

• A, B, O, C

• O, A, B, C

• A, B, C, O

• A, O, B, C

Which layer is weathered bedrock?

• Layer A

• Layer B

• Layer C

• Layer O

Tags

NGSS.MS-ESS1-4

What is below layer C?

• The core

• mineral caves

• bedrock

• humus

What is subsoil know for?

• Organic material

• nutrient rich materials, humus, and tiny rock particles

• being mostly clay

• having large rock particles

Animals help the soil form by adding nutrients, breaking soil apart, and creating channels for water and air.

• True

• False

Tags

NGSS.MS-LS2-3