Plates
Earthquakes
Volcanoes
Mountains
Continental Drift
100
The layer of earth on which we live
What is the crust?
100
shaking of the surface of the earth
What is an earthquake?
100
Molten rock that is inside a volcano
What is magma?
100
Mountains can form when two plates ____ against each other
What is push (or collide)?
100
Two continents that fit together like puzzle pieces
What are South America and Africa?
200
Large pieces of the earth's crust
What are plates?
200
The point in the earths crust where rocks break and the earthquake begins
What is the focus?
200
Very large mounds of rock that can be formed by a volcano as it cools
What is a mountain?
200
When the crust folds and forms peaks, these mountains are created
What is fold mountains?
200
The scientist who first proposed the theory of continental drift
Who is Alfred Wegner?
300
The name of a super continent which included all of the landmasses on earth
What is Pangaea
300
Earthquakes usually happen along these lines
What are faults?
300
A round, quietly eruptng volcano that looks like a dome
What is a shield volcano?
300
WHen oen plate is pushed below another plate these mountains are formed
What are volcanic mountains?
300
The super continent that once had all of the land on earth
What is Pangaea?
400
Scientists believe that plates are moving continuously but________ each year.
What is slowly?
400
The point on the earth's surface directly above the focus
What is the epicenter?
400
The area of the earth where most volcanoes occur
What is the Ring of Fire?
400
A group of mountains
What is a mountain range?
400
The scientific word for moving away from each other
What is divergent?
500
Convergent
What is plates moving towards each other?
500
A giant wave caused by an earthquake in the ocean floor
What is a tsunami?
500
The type of volcano made up of layers of cinders and layers of lava
What is a composite volcano?
500
Made when a plate bulges
What are dome mountains?
500
Evidence that now separated continents had once been joined?
What are fossils? coal beds? rock layers?
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