Earthquakes
A break in the earth's crust
Fault
This state is mostly made of Volcanoes.
Hawaii
The Earths Crust is made of these which are constantly moving....hold on!
Plate Techtonics
Sea floor spreading is found at which type of plate boundary?
Constructive
The name of the supercontinent that existed over 200 million years ago
Pangaea
The type of boundary occurs when two plate techtonics slide past eachother.
Conservative Boundary
This is an area not on a plate boundary where volcanoes frequently occur
Hot spot
This layer of the earth is the hottest.
Inner Core
They can form when earth's plates collide
Mountains
What type of evidence showed that the same animals were found on continents now separated by oceans?
Fossil evidence
This type of boundary occurs when plate techtonics is pushed up past another plate techtonic.
Convergent Boundary
Before it comes out of the earth, what is lava referred as?
Magma
The earth's outer core is made up of this
Liquid Metal
The theory that continents drifted apart is called?
Continental drift
Why did the matching coastlines of South America and Africa support Continental Drift?
They looked like they once fit together
This device measures ground movement
Seismograph/richter scale
Another term for a volcano that is not dead, but not active.
Dormant
Most of the earth's mass is located here (thickest layer)
Mantle
The force that moves tectonic plates
Convection currents in the mantle
The scientist that proposed the theory of Continental Drift
Alfred Wegener
This is the point that sits on the Earth’s Crust directly above the Earthquakes focus.
Epicenter
In the year 76AD, Mt. Vesuvius erupted, killing, but amazingly preserving, the people in a frozen, ashen state in this city.
Pompeii
Which layer has the Lithosphere?
Earth's crust
When one plate slips under another
Subduction
The reason many scientists rejected Wegener’s theory at first
He could not explain the force or mechanism that moved the continents