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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 three.  Four if you separate the core. 

100
Created the Continental Drift Theory
Who is Alfred Wegener
100

Earthquakes and Volcanoes are usually located at the edge of what?  

What is a plate boundary or the edge of plates

100
The Himalayan mountains are the result of a ___________________________ boundary.
What is convergent boundary
200

The crust is broken into pieces called...

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 or the mantle

300
Evidence of tropical plants were found on this continent
What is Antarctica
300

Name at least 3 of the major plates (think of the continent names)

What is any of the following North American plate, South American plate, Eurasian Plate, Indoaustralia plate, African plate, Antarctica plate

300

_________________ are a horrible disaster of a result from the build up of stress at a plate boundary.  

What is earthquakes

400

This type of zone happens when two continental plates are crashing into each other, creating folded mountains. 

What is a collision zone

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

Pangaea existed this many millions of years ago

What is around 250 million years ago  (I will accept between 220 and 270)

400

This is the force (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
Continental Drift Theory was not accepted because it did not explain this
What is how the continents moved
500

The two types of convergent boundary zones (think oceanic-continental and continental-continental)

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

500

This process happens when a dense, oceanic plate crashes into and is sucked down under a less-dense continental plate.

What is subduction!