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 and Volcanoes are usually located in relation to these
What is a plate boundary
100

Mount Everest is the result of a ___________________________ boundary.

What is convergent boundary

200
A number of rigid, but moving, pieces of Earth's surface
What is tectonic plates.
200
The thickest layer of the Earth
What is the mantle.
200

Evidence of matching animal fossils from two separate continents _____________________ and _____________________

What is Africa and South America

200

The mid-ocean ridge is an example of a ____________________ boundary 

What is divergent boundary

200

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

What is dense

300
The theory that all continents are fragments of Pangaea now drifting apart
What is the Continental Drift Theory
300
Plates float on top of the _______________________.
What is the asthenosphere
300
Evidence of tropical plants were found on this continent
What is Antarctica
300

Occurs where new ocean floor is formed

what is sea floor spreading

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

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

What is seafloor spreading

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

The large supercontinent that once covered the Earth 

what is Pangea

400

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

What is convection currents in the mantle

400
The San Andreas Fault in California is an example of a ____________________ boundary.
What is a transform boundary
500
Although the hottest layer of the Earth, this layer is solid metal
What is the inner core
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

The female scientist featured in the music video "Girl Talk" that mapped the ocean floor and helped to add evidence to continental drift theory

Who is Marie Tharp

500

The two types of convergent boundaries

What is subduction (where volcanoes often occur) and collision (where mountains are usually formed)

OR continental to continental and oceanic and continental

500

Pangaea existed this many millions of years ago

250 million years ago

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