Show:
Weathering
Erosion
Groundwater
Surface Water
Weathering and Erosion
100
physical processes that break rock apart without changing its chemical makeup; can be caused by ice wedging, animals, and plant roots
What is mechanical weathering?
100
A type of mass movement that occurs when a mass of material moves down a curved slope.
What is slump?
100

This type of well reaches an unconfined aquifer and the water pumped is used for agricultural purposes.

What is a water table well

100

Which river system has the greatest rate of erosion

young river

100
A dropping of sediments that occurs when an agent of erosion, such as gravity, glacier, wind, or water loses its energy and can no longer carry its load.
What is deposition?
200
average weather pattern in an area over a long period of time; can be classified by temperature, humidity, precipitation, and vegetation
What is climate?
200
A type of mass movement in which sediments move down-slope very slowly; common in areas of freezing and thawing and can cause walls, trees, and fences to lean downhill.
What is creep?
200

When the water table line intersects with the surface it creates?

surface water, river, lake, stream ,spring

200

A type of erosion that occurs when windblown sediments strike rocks and sediments, polishing and pitting their surfaces; often compared to sandblasting.

What is abrasion?

200
A process in which surface materials are worn away and transported from one place to another by agents such as gravity, water, wind, and glaciers.
What is erosion?
300
The process that occurs when chemical reactions dissolve the minerals in rocks or change them into different minerals.
What is chemical weathering?
300
Any type of erosion that occurs as gravity moves material down-slope.
What is mass movement?
300
A process that adds gravel, sand, and boulders to a glacier's bottom and sides as water freezes and thaws, breaking off pieces of surrounding rock.
What is plucking?
300

explain how an oxbow lake may form

....................................

300

The curves or meanders in a river or stream can help a scientist determine what?

age of the river

400
A mechanical weathering process that occurs when water freezes in the cracks of rocks and expands, causing the rocks to break apart.
What is ice/frost wedging?
400
To reduce erosion on steep slopes, people can
What is plant vegetation, insert drainage pipes, build walls, terrace with railroad ties?
400

Where do we get the cleanest supply of fresh water?

a confined aquifer via artesian well.

400

vegetation in an area would Increase/Decrease the rate of erosion/chances of flooding in an area?

Decrease

400

3 factors that affect the erosion rate of a river or stream?

Velocity, Gradient, Discharge

500

Which rock type would be weathered away at a faster rate, metamorphic or extrusive igneous? explain why

extrusive igneous the rock has a lower density and softer minerals.

500
This happens when large blocks of rock break loose from a steep slope and start tumbling downward.
What is a rockfall?
500

explain the concepts of porosity and permeability and how they are related

porosity-amount of space between sediments

permeability- rate water travels through sediments

Direct

500

Karst Topography can be described as?

land with rocks containing calcite where hydrolysis takes place creating caves and sinkholes

500

3 factors affect the rate of weathering

surface area, composition, climate