Earth's Layers
Moving Plates
Volcanoes
Earthquakes
Mountains
100
Because it is so hot inside of the Earth, these boiling fountains burst out of Earth's crust
What are geysers?
100
The idea that giant plates of rock are moving slowly across Earth's surface
What is plate tectonics?
100
This is underground lava
What is magma?
100
A violent shaking of Earth's crust?
What is an earthquake?
100
These mountains occur at a converging boundary
What are fold mountains?
200
This thick layer is just below Earth's crust and is about two-thirds of Earth's mass
What is the mantle?
200
At this type of boundary, two plates move away from each other
What is a diverging boundary?
200
The central opening of a volcano
What is a vent?
200
The point on the surface directly above the focus of an earthquake
What is the epicenter?
200
Fold mountains usually occur where these two types of plates collide
What are oceanic and continental plates?
300
This innermost layer of the Earth is very hot and is made up of two pieces: the inner and the outer
What is the core?
300
Alfred Wegener's theory that all continents used to be joined together
What is Pangaea?
300
This word comes from the ancient Roman god of fire named Vulcan
What is volcano?
300
Cracks in Earth's surface where movement takes place
What are faults?
300
These are mountains that form when magma pushes up on Earth's crust but does not break through
What are dome mountains?
400
This is the layer of the Earth that is part of both the mantle and the crust
What is the lithosphere?
400
The famous German meteorologist and geologist who first introduced the idea of Pangaea
Who is Alfred Wegener?
400
This is an opening in Earth's surface through which melted rock, hot gases, rock fragments, and ash burst forth
What is a volcano?
400
The focus of an earthquake is a point where the faulting occurs and is found here
What is underground?
400
This type of mountain is formed by volcanic activity
What is a dome mountain?
500
This uppermost layer of Earth is very thin and mostly solid rock
What is the crust?
500
At this type of boundary, two plates move towards each other
What is a converging boundary?
500
After an eruption, a volcano often collapses into this bowl-shaped formation
What is a crater?
500
Waves of energy that are sent through Earth's crust when plates move suddenly
What are seismic waves?
500
These mountains form along fault lines where blocks of rock fall, are thrust up, or slide
What are fault-block mountains?
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