Theory Of Plate Tectonics
Mountains And Volcanoes
Sea-Floor Spreading
Earth Movement
Hot Spots & The Ring of Fire
100
what is the outer part of the earth
Lithosphere
100

Here there is Magma pushing through the Earth crust, What is the name of the opening?

Rift Zone

100

In the process of sea-floor spreading magma creates new what ?

Oceanic Crust

100

How fast do continental plates to move? 


about 2 to 10 cm a year. 

100
What is an hotspot ?
A hotspot is a spot that stay in the same place even though the plates above it move .
200
What are the sections called when the lithosphere are broken
Tectonic plates
200
The outer layer of the lithosphere is called the ?
Earths Crust
200
In the process of sea-floor spreading the two oceanic plates do what ?
The plates move apart
200

What is a fault ?

A fault is a break or crack in the earths surface

200
What type of islands are located on a hotspot ?
Hawaiian
300
What causes plates to move ?
currents
300

As Subduction occurs _____________ get drawn into the Lithosphere and this reduces the melting point of area and results in Volcanoes. 

Water

300
Sea-floor spreading causes ocean to do what ?
Widened
300

How many different plate Boundaries are there?

Three(3)

300
The ring of fire is located along on the boundary on which plate ?
Pacific
400
plates covered mainly by continents are called what ?
Continental plates
400

What is an example of a feature that forms when two Continental plates collide?

The Himalayas

400
Mid-Ocean ridges are what ?
Long chains of underwater mountains
400

What type of fault movements does the San Andres fault have and what is it called? 

The plates slide past each other sideways, and it is a transform plate boundary

400
The ring of fire consists of what percent of volcanoes
Seventy-Five (75)
500
A region where two plates meet is called what ?
plate boundary
500

A trench is formed when a  ______ plate collides with a ____________ plate and one is pushed under the other

Oceanic continental

500

In the Flattest part of the ocean the ___________ ______________ large ___________ can be found, rising from the ocean floor?

Abyssal plain, Guyots 

500

Why does the formation of Magma result in it rising and pouring out a volcano?

The Magma is hotter and less dense and builds up pressure until and Eruption. 

500

The ring arc reaches from where, give me a general Idea?

From New Zealand and Asia, North America, South America

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