Vocabulary
Structure of the Earth
Continental Drift Theory
Plate Tectonics
Miscellaneous
100
These type of plate boundaries come together to cause subduction or mountain ranges.
What is Convergent Boundary
100
There are ____________ main layers of the Earth.
What is four
100
These Two continents look like they fit together like pieces of a puzzle.
What are South America and Africa
100
Earthquakes 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
This type of rising and falling of magma due to heating and cooling down happens in the asthenosphere.
What are convection currents.
200
The place where convection takes place.
What is the asthenosphere
200
Created the Continental Drift Theory
What is Alfred Wegener
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
These boundaries run parallel to each other and often cause Earthquakes.
What is a transform boundary
300
Tectonic Plates float on top of the ____________.
What is the asthenosphere
300
This is the name of the last super continent
What is Pangaea
300
The two types of convergent boundaries
What is oceanic to oceanic, continental to continental, or oceanic to continental
300
________________ are a result from the build up of stress at a plate boundary.
What are earthquakes
400
This happens when the thinner, denser plate slides under the thicker, less dense plate.
What is subduction
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 250 Million Years Ago
400
This is the mechanism (what causes) the plates to move
What is convection cycles in the mantle
400
The San Andreas Fault in California is an example of a ____________________ boundary.
What is a transform boundary
500
This action happens when divergent plates beneath the ocean spread apart and pull up magma from the asthenosphere.
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
The Continental Drift Theory was not accepted at first because it did not explain this.
What is how the continents moved
500
Name four of the major plates
What is any of the following North American plate, South American plate, Eurasian Plate, Indoaustralia plate, African plate, Antarctica plate
500
This person used sonar to map the bottom of the ocean and discovered the mid-ocean ridge in the Atlantic Ocean.
Who is Harry Hess
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