Understanding Weathering and Soil Formation

What is the process called when rocks are broken down into smaller pieces without changing their chemical composition?

• Chemical weathering

• Mechanical weathering

• Oxidation

• Leaching

Which of the following is NOT one of the five main components that make up soil?

• Water

• Plastic

• Decayed organic material

• Mineral fragments

What is the dark, nutrient-rich material formed from decayed plant and animal matter in soil called?

• Litter

• Humus

• Outwash

• Till

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-3

NGSS.MS-ESS2-1

Which process involves the removal of dissolved minerals from soil by water moving downward?

• Plucking

• Leaching

• Scouring

• Deposition

Tags

NGSS.MS-ESS2-4

What type of valley is typically formed by glacial erosion?

• V-shaped valley

• U-shaped valley

• Flat plain

• Delta

Which farming method involves planting crops along the natural curves of the land to reduce soil erosion?

• Terrace farming

• Contour farming

• No-till farming

• Plowing up and down the slope

What is the process called when glaciers pick up rocks and carry them along as they move?

• Plucking

• Oxidation

• Leaching

• Creep

Which of the following is an example of chemical weathering?

• Ice wedging

• Oxidation

• Scouring

• Creep

What is the name for the unsorted mixture of sediments deposited directly by a glacier?

• Outwash

• Till

• Litter

• Horizon

Which mass movement is the slowest and causes objects like fence posts to tilt over time?

• Slump

• Creep

• Rockfall

• Mudflow