Flash Cards

Weathering, Erosion & Deposition

Question Answer
Weathering is the process that? Causes rock to change, breakdown and crumble through either a natural physical or chemical process.
Erosion is the process that? Transports soil and sediment from one location to another by a natural physical process using wind, water, ice or gravity.
Loose, weathered material on Earth's surface in which plants can grow is? Soil
The solid layer of rock beneath the soil? Bedrock
Another name for mechanical weathering is? Physical Weathering
Weathering orccurs most quickly in what kind of environment? One that is both… Wet and Hot
The two most important factors that determine the rate at which weathering occurs are? 1. The type of rock 2. The climate
The growth of plant roots and animal activity may result in this type of weathering? Mechanical
Material moved by erosion is called? Sediment
Karst Topography in which caves, valleys, and sinkholes are common is created by? Ground water erosion where ground water sinks down into weathered limestone .
The force that moves rock and other materials downhill is called? Gravity
Extra water that moves over the Earth's surface is? Runoff
The wearing away of rocks by a grinding action is called? Abrasion
A deposit in caves that hangs from the roof like an icecicle? Stalactite
A deposit created by slow drippings in a cave that build up from the floor of a cave into a cone-shape formation. Stalagmite
What are four types of mass movements? 1. Landslides 2. Mudslides 3. Slump 4. Creep
This occurs when rock and soil slide rapidly down a steep slope. Landslide
Which type of mass movement tends to be most destructive? A Landslide
This often occurs after a heavy rain in a normally dry area. Mudflow
What is a Mudflow? Rapid downhill movement of a mixture of water, rock and soil.
What is a slump? Occurs when a mass of rock and soil breaks away and slips down a slope in one solid mass.
What causes a slump? Often occurs when water soaks soil rick in clay at the bottom of the mass causing it to weather and break down.
What is creep? Slow downward movement of rock and soil.
What causes creep to occur? Often results from the freezing and thawing of water in cracked layers of rock beneath the soil.
What are two types of Glaciers? Continental and Valley
Energy from waves comes from this.. Wind that blows across the waters surface.
Glaciers can only form in areas where… More snow falls than melts.
The two processes by which glaciers erode the land are? Plucking and Abrasion
The two processes by which waves erode the land are Breaking down rock and tranporting sand.
Define plucking? Process where a glacier flows over land picking up rocks in its path.
A mixture of sediments that a glacier deposits directly on the surface is called? Till
A deposit of wind-blown sand is called? Sand Dune
Wind causes erosion by? Deflation and Abrasion
Define Deflation The process by which wind removes surface material by blowing over the land picking up small particles of sediment.

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