Show:
Plate Tectonics
Earthquakes and Volcanoes
Weathering
Erosion
Deposition
100
What are the three types of boundaries.
Divergent Convergent Transform
100
What is a fault?
The surface along which the crust moves
100
What is the definition of weathering?
The processes by which rocks break down. It changes earth's surface over time.
100
Minerals and small pieces of rock are called what?
Sediment
100
What is the definition of deposition?
Deposition is the process of laying eroded material in a new location
200
Name the three forces that occur at convergent, divergent and transform boundaries (in that order).
Convergent- compression Divergent- tension Transform- shear
200
Where do most earthquakes occur?
Near plate boundaries
200
Give one interaction of chemical weathering.
Chemical weathering weakens rocks to allow more physical weathering.
200
What are the elements that erosion happens through?
Wind Water Ice
200
What are the 3 elements that cause deposition?
Wind Water Ice
300
Who developed the plate tectonics theory?
Alfred Wegener
300
What are tsunamis?
Large waves caused by underwater eathquakes.
300
What are the types of weathering?
Chemical and physical.
300
How does moving water cause erosion?
Moving water causes erosion by picking up peices of rock and sediment that scrape along the ground.
300
How does deposition by ice happen?
When glaciers melt the sediment is deposited where the melting happens.
400
What is the definition of subduction zone?
The area where one plate slides under each other.
400
What are mid-ocean ridges and how are they formed?
The underwater mountains that form as lava builds up and cools.
400
What is the definition of physical weathering? What does it do?
The process of breaking down rocks without changing the composition of the rocks.
400
How does ice cause erosion?
Glaciers pull down rock and sediment which erode mountain sides.
400
How does deposition by water happen?
If the water speed slows the sediment settles.
500
What in the Earth's mantle causes the plates to move?
Convection currents
500
What are the three types of volcanoes? Describe how composite volcanoes form.
Shield, composite and caldera are the three types. Composite volcanoes form by lava flowing and ash layers depositing via explosive eruptions.
500
What is chemical weathering's definition? What is one mineral that wears more easily than others.
Chemical weathering is the process of changing the composition of rocks and minerals by exposure to water and the atmosphere. Feldspar OR calcite.
500
How does wind cause erosion and what is one result of wind erosion?
Wind moves rock and sediment that arent protected. One result is the changed shape of rock.
500
What are glacial deposits of sediment called?
Moraines