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martha.hulsey
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What is used to measure the movement of the tectonic plates?
Global Positioning System (GPS)
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What is the theory that says that a single continent once existed?
Continental Drift Therory
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What takes place at mid-ocean ridges?
Sea-floor spreading
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Name 3 pieces of evidence of continental drift?
- magnetic reversals
- the fossil record
- sea-floor spreading
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What happens at a convergent boundary?
plates collide
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Which type of stress causes a normal fault?
Tension
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Compression causes what kind of fault?
Reverse
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_________is the outermost (physical) layer of the Earth
Lithosphere
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Which is the liquid layer of the core, the inner core or the outer core
outer core
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Mountains with sharp, jagged peaks have experienced what type of force or stress?
Tension
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Which boundary is formed when plates slide past each other?
transform
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The place where two tectonic plates meet is called a_____________
boundary
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At the mid-ocean ridges, what hardens to form new floor?
magma
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Magnetic reversal is used as evidence for___________
sea-floor spreading
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What is Pangaea?
A single, huge continent that is thought to have existed long ago.
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When plates separate, what type of boundary is this called?
divergent
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Fossils are used as evidence for ________.
continental drift
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What is used to measure the density of the Earth's layers?
seismograph
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In a reverse fault, is the hanging wall up or down relative to the footwall?
up
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Which way does the hanging wall move in a normal fault?
Downward
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The outermost layer of the Earth that is a part of the crust is called
Lithosphere
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The _____core is the liquid layer of the Earth's core
Outer
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Places of the lithosphere that move around on top of the asthenosphere are called
Tectonic Plates
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The area where two tectonic plates meet is called a
Boundary
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The huge, single continent that once existed was called
Pangaea
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Sea-floor spreading takes place in
Mid-Ocean Ridges
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_______did not provide evidence for continental drift
Oceanic Plate Theory
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____________were used as evidence for the continental drift
Fossils
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What are the 3 types of boundaries?
- Divergent Boundary
- Convergent Boundary
- Transform Boundary
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What kind of mountain is formed when rocks are squeezed together and push up?
Folded Mountains
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When pieces of the Lithosphere break and drop down, they form which type of mountain?
Fault-Block Mountain
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What kind of mountain forms when melted rock erupts onto the Earth's surface?
Volcanic Mountain
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The _____________deformation folds rocks in a U shape
syncline
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The __________folding of a rock is shaped like and upside-down U
anticline
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Name the two types of stress
- compression--pushes together
- tension---pulls apart
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Name the layers of the earth by their composition in order
- The Crust
- The Mantle
- The Core
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Name the layers of the Earth by their Physical Structure in order
- Lithosphere
- Asthenosphere
- Mesosphere
- Outer Core
- Inner Core
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Who was the Scientist that wrote about his hypothesis that states that the continents once formed a single landmass, broke up and drifted to their present locations?
Alfred Wegener
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Pangea is Greek for _________
"all earth"
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In a normal fault, the hanging wall is upward or downward?
downward
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What are the 3 types of faults?
- Normal Fault
- Reverse Fault
- Strike-Slip Fault
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