Tectonic Plates
Rigid, but moving, pieces of Earth's surface
What are tectonic plates?
There are ______________ main layers of the Earth.
What is Four?
These are the two types of evidence that were initially used to support the Theory of Continental Drift
What are similar shapes of coastlines and fossil evidence?
Earthquakes and Volcanoes are usually located in relation to these
What is along plate boundaries?
Rift Valleys or Mid-Ocean Ridges are a result of _______________
What are divergent boundaries?
_________ is the area where two tectonic plates meet
What are plate boundaries?
The thickest layer of the Earth...
What is the mantle?
_____________ is the name of the proposed "supercontinent" where all the earth's continents were once joined together.
What is Pangaea?
The mid-ocean ridge is an example of a ____________________ boundary
What is a divergent boundary?
__________________ are a result of the build-up of stress at a plate boundary.
What are earthquakes?
What layer do tectonic plates float on?
What is the hot mantle?
What layer is in the liquid state?
What is the outer core?
Created the Continental Drift Theory
Who is Alfred Wegener?
The Himalayan mountains are the result of a ___________________________ boundary.
What is a convergent boundary?
The San Andreas Fault in California is an example of a ____________________ boundary.
What is a transform boundary?
The scientific theory explains how major landforms are created as a result of Earth's subterranean movements.
What is the theory of Plate Tectonics?
The rigid part of the Earth, including the crust and the upper mantle (makes up the plates of the Earth)?
What is the lithosphere?
The theory that all continents are fragments of Pangaea now drifting apart
What is The Theory of Continental Drift?
This is the mechanism (what causes) the plates to move
What are convection currents?
Volcanoes are a result of ____________
What are convergent boundaries?
Name three of the major plates
What is any of the following:
North American plate, South American plate, Eurasian plate, Indoaustralia plate, African plate, or Antarctica plate?
_____________________ is the thinnest part of Earth's crust and _____________________ is the thickest part of the Earth's crust
What are the oceanic crust and the continental crust?
The Continental Drift Theory was not accepted because it did not explain this
What is how the continents moved?
This is the average distance the earth's plates move per year.
What is 1 inch/year?
This is the term for the fracture created when one plate suddenly slides past another plate.
What is a fault?