Earth's Crust
Changes to Earth's surface
Volcanoes and Landscapes
Miscellaneous
Arkansas
100
The breaking down of earth's crust by physical or chemical means.
What is Weathering?
100
A rapid movement of a large amount of rock and soil downhill, due to the pull of gravity.
What is a landslide?
100
A volcano is classified as this if scientists do not think it will erupt again.
What is extinct?
100
The focus is the place underground where the plates start to move. The point on earth's surface that is directly above the focus is called this.
What is the epicenter?
100
This has rugged hills and deep valleys.
What is Ozark Plateau
200
This occurs when forces split, break, or wear away rocks.
What is Physical Weathering?
200
A rapid movement of snow and ice down the side of a mountain.
What is an avalanche?
200
Very hot, partially liquid rock found under Earth's crust.
What is magma?
200
This type of movement along a fault causes most earthquakes.
What is plate movement?
200
The Arkansas River runs through this part of Arkansas.
What is Arkansas River Valley?
300
This occurs when some chemicals react with rocks to change them into different materials.
What is Chemical weathering?
300
A weak spot in Eath's crust where magma is forced upward and reaches the surface.
What is a volcano?
300
This can pull objects from a higher place to a lower place.
What is oxygen?
300
These can cause disease if they are able to enter your body.
What is microorganisms?
300
This mountain area is rich in minerals.
What is the Ouachita Mountains?
400
The process of carrying away loose materials on Earth's surface by moving water, ice, wind, or gravity.
What is Erosion?
400
When magma flows out of a volcano, it is known as this.
What is lava?
400
Frequent eruptions signify this type of volcano.
What is active?
400
This is your body's first defense.
What is the skin?
400
This area is covered by pine forests and farmlands.
What is the Coastal Plain?
500
This happens when eroded material is laid down in a new location by wind, water, or ice.
What is Deposition?
500
A volcano that has not erupted for a long time is called this.
What is dormant?
500
Earth is constantly moving because of these.
What is crustal plates?
500
This washes away or kills disease-causing microorganisms in the eye.
What is tears?
500
This area lies along the Mississippi River.
What is the Mississippi Alluvial Plain?
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