Earthquakes
Rock Cycle
Layers of the Earth
Plate Boundaries
Volcanoes
100
The starting point of an earthquake
What is focus?
100
when a rocks are heated so much they melt
What are metamorphic rock
100
the thinnest layer
What is crust
100
come together
What is convergent boundary
100
causes a volcanoe to erupt
What is earthquake
200
this is how you measure a wave
What is siesmagraph
200
the thickest layer
What is mantle
200
causes earthquakes
What is transform boudary
200
located on the sides of volcanoes
What are vents
300
The point above the focus
What is epicenter
300
forms when magma cools and hardens
What is igneous rock
300
convection currents are located here
What is asthenoshpere
300
sea floor spreading, creates more land
What is divergent boundary
300
when they are able to arupt they are ..
what is active
400
these waves travel through liquid and soilid
What are s-waves
400
compaction and comression form...
What is sedmentary rock
400
made of mostly granite
What is contenintal crust
400
this plate forms the san andreas fault line
What is transform boundary
400
where magma is stored until volcanoe becomes active
What is magma chamber
500
This is cause by an underwater earthquake
What is tsunami
500
when rocks cool on the inside of earth
What is instrusive igneous
500
made of nickel and iron
What is the inner core
500
at one time all the plateswere together and fromed one land mass this was called..
What is pangeauas
500
where many plates collide causing many eruptions
What is ring of fire
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