Grade 6 Soil Practice Test Questions

1. What 2 things is soil made up of?

• Minerals and Clay

• Organic Matter and Silt

• Rocks and Organic Matter

• Sand and Clay

What is decayed material in soil called?

• Loam

• Peat

• Subsoil

• Humus

Which soil particle is the most permeable?

• Sand

• Silt

• Clay

• Loam

What soil particle is the least permeable?

• Sand

• Silt

• Clay

• Loam

What do you call a type of soil that contains an equal amount of all of the components above making it the “ideal” soil?

• Sandy Silt

• Silty Clay

• Loam

• Silt

1. What are two types of soil erosion?

• WInd and Water

• Water and Weathering

• Compaction and Cementation

• Water and Air

What are results of soil erosion?

• Higher Costs

• Lower Crop Yields

• Formation of Gullies

• All of the Above

Tags

NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What are ways to reduce soil erosion?

• Harvest Crops Later

• Rotate Crops

• Plant Crops Earlier

• Plant According to Contour of Land

What is a soil horizon?

• A factor influencing how soil is formed

• A layer of soil

• An organism found within the soil

• A technique used to map soils

What are the three main layers that form the soil profile?

• Minerals, organic matter, and living organisms

• Topsoil, subsoil, and parent material

• Clay, silt, and sand

• Air, water, and soil