Unit C Chapter 3 and 4

the loose material in which plants can grow in the upper layer of earth

• conservation

• resource

• soil

• strip cropping

the part of the soil made up of decayed parts of the once-living things

• humus

• bedrock

• contour plowing

• soil

the top layer of soil made up of the smallest grains and most humus

• resource

• soil

• loam

• topsoil

the solid rock that is under soil

• conservation

• bedrock

• clay

• humus

a type of soil made up of very small grains; it holds water well

• clay

• contour plowing

• bedrock

• resource

a type of topsoil that is rich in minerals and lots of humus

• soil

• humus

• loam

• conservation

a material that is found in nature and that is used by living things

• bedrock

• strip cropping

• topsoil

• resource

Tags

NGSS.MS-LS2-1

the saving of resources by using them carefully

• conservation

• humus

• clay

• contour plowing

a type of planting that uses strips of thick grass or clover between strips of crops

• loam

• strip cropping

• soil

• clay

a type of plowing for growing crops; creates rows of crops around the sides of a hill instead of up and down

• resource

• soil

• contour plowing

• humus

Tags

NGSS.MS-ESS3-4