Weathering
the process by which materials on or near earth’s surface break down and change
what is weathering?
The removal of weathered rock and soil from its original location
what is erosion?
What is the outer layer of Earth called?
crust
Beneath Earth's crust is the ______
what is the mantle?
Topsoil being removed from the surface of the ground by the wind is an example of
wind erosion
Tree roots growing through a rock is an example of what type of weathering?
what is mechanical?
Give two examples of erosion caused by water
Rill & gully erosion; erosion by waves
The layer of Earth that is made up of liquid molten material capable of flow
what is the mantle?
List the layers of the earth (main four) from inside out
inner core --> outer core --> mantle --> crust
Acid eating away at rocks is an example of what type of weathering?
chemical weathering
Mechanical weathering occurs in climates that are ______ or ______
cold or dry
This type of land feature scrapes and gouges Earth's landscape
Glaciers
What is the structure of Earth's Outer core?
liquid iron and Nickel
The lower layer of the mantle is called
what is the asthenosphere
Sand blowing against objects is an example of what?
what is wind erosion?
Chemical weathering occurs more often in climates that are ______ and ______
warm and wet
the concentrated action of running water, such as rainfall and surface runoff, which detaches and transports soil particles down a slope
Rill and gully erosion
The inner core is made of?
Solid Iron
the upper layer of the mantle and lower level of the crust is called the
what is the lithosphere
A chemical weathering process where minerals, especially those containing iron, react with oxygen and water to form new, more stable minerals, leading to the breakdown of rocks.
what is Oxidation
How is mechanical weathering different from chemical weathering?
In mechanical weathering the rocks break apart without changing their chemical composition
What are the 4 agents of erosion?
Gravity, glaciers, wind, and water
What 3 factors affect depth in Earth's layers?
density, temperature, & pressure
Where is the most dense layer of Earth?
Inner Core
How can planting vegetation prevent erosion?
Vegetation with strong root systems hold soil in place