Weathering and Erosion

Geologists believe that the geological that the geological processes that operate today are the same process that operated in the past.

• uniformitarianism

• mechanical weathering

• chemical weathering

• abrasion

Tags

NGSS.MS-LS4-1

The type of weathering that physically breaks rock into smaller pieces.

• soil horizon

• mechanical weathering

• chemical weathering

• uniformitarianism

Loose, weathered material on Earth's surface in which plants can grow.

• bedrock

• C Horizon

• B Horizon

• soil

Tags

NGSS.MS-LS2-3

The wearing away of rock by rock particles carried by water, ice, wind, or gravity.

• freezing and thawing

• relief of pressure

• erosion

• acid rain

Tags

NGSS.MS-ESS2-2

A layer of soil that differs in color and texture.

• soil

• soil horizon

• humus

• bedrock

Which horizon contains the bedrock that has begun to weather and break into smaller particles.

• C Horizon (parent material)

• A Horizon (topsoil)

• Humus

• B Horizon (subsoil)

Which horizon is formed as plants add organic materials from the humus above to the soil and plant roots weather rock?

• C Horizon (parent material)

• A Horizon (topsoil)

• Bedrock

• B Horizon (subsoil)

Tags

NGSS.MS-LS2-3

The solid rock layer beneath the soil which is also the most common component of the soil.

• Bedrock

• A Horizon (topsoil)

• Humus

• C Horizon (parent material)

The layer of soil formed when rain washes material down from the A horizon (topsoil).

• Humus

• Bedrock

• B Horizon (subsoil)

• C Horizon (parent material)

Tags

NGSS.MS-ESS2-1

crumbly, dark brown soil that is a mixture of humus, clay, and other materials.

• weathering

• subsoil

• erosion

• topsoil

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-2