Ch 10 Section 1
** Describe the difference between the lithosphere and the asthenosphere.
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** List the four layers of Earth.
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** What are two clues that scientists use to determine how Earth's interior is divided into layers?
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List three possible reasonsfor plate movement.
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When does slab-pull occur?
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Earth's outermost layer is the ____________.
Crust
Earth's inner core is composed mostly of solid copper.
False, Iron
Earths's outer core is composed mostly of molten mercury.
False, Metal
The deeper the distance into the core of the Earth, the lower the temperature.
False, higher
The largest layer of the Earth's interior is the ________________.
Mantle
The inner core of Earth is ____________.
Solid
_____________ is when one plate sinks beneath another plate.
Subduction
At about 5,000 degrees celsius, the inner core is the hottest part of the Earth.
True
plastic like part of the mantle
asthenosphere
outermost layer of Earth's surface
crust
Sliding plates cause _________.
earthquakes
Large fractures in rocks along which movement occurs
fault
Large fractures in rocks where movement occurs are ___________.
faults
Earth's core is under great pressure due to ________.
gravity
made of solid iron
inner core
Earth's core is divided into a _________ part and soild part.
liquid
largest layer of Earth's interior
mantle
made of molten metal
outer core
When a plate at a mid-ocean ridge responds to gravity by sliding down a slope, it is called________.
ridge-push
Waves that carry energy through Earth's rocks are called ____________ waves.
seismic
A mid-ocean ridge forms from _______ plates.
separating
Plates move apart because of ___________, a pulling force acting on plates.
tension