Boundaries
Layers of the Earth
Vocabulary
Volcanoes
Miscellaneous
100
The boundary that involves two plates colliding.
Convergent
100
The outer layer of the Earth, made up of tectonic plates.
The crust
100
The Earth's crust is broken up into pieces called ___.
Tectonic Plates
100
Flat volcanoes
Shield
100
The point of Earth's surface directly above the center of an Earthquake
The epicenter
200
A boundary where two plates are coming apart.
Divergent
200
The solid innermost layer of the Earth.
The inner core
200
Supercontinent made up of all the land masses on Earth.
Pangaea
200
Steep sided volcano made mostly of tephra
Cinder Cone
200
Waves of energy on Earth's surface during an earthquake that travel outward from the epicenter and move rock particles up, down and side to side
Surface Waves
300
The boundary where two plates slide past each other.
Transform
300
The thickest layer of the Earth
The mantle
300
A break in the Earth's crust
A fault
300
The solid igneous rock core of a volcano that lava comes out of
Volcanic Neck
300
Hypothesis that the continents slowly drifted to their current locations
Continental drift
400
This type of boundary leads to mid-ocean ridges.
Divergent
400
The sphere of the Earth that makes up the crust and mantle
The lithosphere
400
Waves that travel outwards across an Earthquake's surface, causing particles to move back and forth.
Primary Waves
400
The large opening formed when a volcano's top collapses
Caldera
400
The idea that Earth's processes that are happening today are similar to those that happened in the past
Uniformitarianism
500
This type of boundary leads to subduction zones.
Convergent
500
The plastic-like layer underneath the lithosphere.
The Asthenosphere
500
Differences in temperature within the Earth cause these types of currents to flow.
Convection Currents
500
A volcano formed by alternating layers of tephra and lava that is found mostly where Earth's plates come together
Composite
500
A process to determine the absolute ages of rocks
Radioactive Dating
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