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Layers of the Earth
Layers of the Earth
Types of boundaries
Vocabulary
Grab Bag
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This makes up most of the
Earth’s mass.
What is the mantle.
The outermost layer of the Earth
is called this.
What is lithosphere.
Tectonic plates consist of these
types of crusts.
What is continental and
oceanic.
Tectonic plates float on top of
this layer.
What is asthenosphere.
These are the 5 main physical
layers in order from the surface
to the center of the Earth.
What is the lithosphere,
asthenosphere, mesosphere,
outer core and inner core.
Wegener thought all continents
were once together in one large
continent called this.
What is Pangaea.
Sea floor spreading takes place
at these areas.
What are mid ocean ridges
The fact that similar fossils are
found on both sides of the
ocean is evidence of this.
What is Continental Drift.
The theory of Continental Drift
explains this about our
continents.
Why our continents move.
New oceanic lithosphere forms
as a result of this.
What is sea floor spreading.
This type of boundary occurs
where 2 plates collide.
What is a convergent boundary.
This type of fault is caused by
compression.
What is a reverse fault.
This is an area where 2 tectonic
plates meet.
What are boundaries.
Plates slide past each other at
this type of boundary.
What is a transform boundary.
This type of fault occurs
because of tension.
What are normal faults.
This is the amount of force per
area on a given material.
What is stress.
Stress squeezing an object is
this.
What is compression.
Pulling an object is this.
What is tension.
This is when Earth’s magnetic
poles change place.
What is magnetic reversal.
This is the strong lower part of
the mantle that lies beneath the
asthenosphere.
What is the mesosphere.
This is the solid dense center of
our planet.
What is the inner core.
This type of boundary forms
when 2 plates separate.
What is a divergent boundary.
Earthquakes produce these.
What are seismic waves.
This is the liquid layer of the
Earth.
What is the outer core.
Scientists use the Global
Positioning System (GPS) for
this.
What is to measure tectonic
plate movement.
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