Vocabulary
Structure of the Earth
Continental Drift Theory
Plate Tectonics
Miscellaneous
100
The thinnest layer of the Earth
What is the crust
100
There are ______________ main layers of the Earth.
What is four
100
Created the Continental Drift Theory
Who is Alfred Wegener
100

Earthquakes, Mountains, and Volcanoes are usually located in relation to these

What is a plate boundary

100

The Himalayan mountains are the result of a ___________ boundary.

What is convergent boundary

200

A number of rigid, but moving, pieces of Earth's lithosphere 

What is tectonic plates?

200
The thickest layer of the Earth
What is the mantle.
200

The hypothesis that states that the continents once formed a single landmass, broke up, and drifted to their present locations.

What is the Continental Drift Theory?

200
The mid-ocean ridge is an example of a ____________________ boundary and ___________________ occurs here where new ocean floor is formed.
What is divergent boundary; sea-floor spreading
200

Hot air or liquid is less ________________ than cool air or liquid

What is dense

300

Measures and records earthquake magnitude based on the energy released in an earthquake.

What is seismographs?

300
Plates float on top of the _______________________.
What is the asthenosphere
300

Term for the super continent which contained all the plates together.

What is Pangaea?

300

Melted material created by subduction rises to form volcanoes (Best term that describes movement)

What is convergent boundaries?

300
_________________ are a result from the build up of stress at a plate boundary.
What is earthquakes
400

The point on Earth's surface directly above an earthquake

What is an epicenter?

400
The rigid part of the Earth including the crust and the upper mantle (makes up the plates of the Earth)
What is the lithosphere
400

Suppose a scientist finds additional evidence to support the theory of plate tectonics. What effect will this MOST likely have on the theory?

What is plate tectonics will continue to be accepted as a scientific theory.

400

This is the mechanism (what causes) the plates to move (be specific)

What is convection currents in the asthenosphere

400
The San Andreas Fault in California is an example of a ____________________ boundary.
What is a transform boundary
500

States that youngest rocks of ocean floor are at divergent boundaries, moving outward

What is sea-floor spreading?
500
The Earth's crust is thinnest under the _____________________ and thickest under the _____________________.
What is thinnest under the ocean and thickest under the continents.
500

Continental Drift Theory was not accepted because it did not explain this

What is how the continents moved

500

Off the coast of South America along the Peru-Chile trench, the oceanic Nazca plate is being pushed under the continental South American plate. As a result, the South American plate is being lifted up. Which landform is being created along these plate boundaries?

What is the Nazca Plate will slide under the South American Plate and lead to volcano formation.

500

At a transform boundary (fault) land is neither __________ or __________, only moved.

What is created, destroyed

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