volcanoes
Earthquakes
Earth Layers
Earth in general
100
opening at the top of a volcano
What is a vent
100
shaking of the earth's crust
What is an earthquake
100
core
What is the inner most layer of the Earth
100
theory that the earth's crust is made of moving sections or plates
What is plate tectonics
200
mountain formed when magma erupts
What is a volcano
200
name of the scale that measures earthquake strength
What is Richter Scale
200
Crust
What is the outer most layer of the Earth or the layer we walk on
200
circular motion of gas or liquid as it heats
What is convection current
300
small steep volcano made of loose rock with explosive eruptions
What is cinder cone
300
instrument that dectects earthquake waves
What is a seismograph
300
Mantle
What is middle layer of the Earth
300
large ocean wave caused by an earthquake
What is tsunami
400
point directly over the focus of an earthquake
What is the epicenter
400
made of mostly iron and nickel
What is the core
400
theory that new crust forms at mid ocean ridge
What is sea floor spreading
500
earthquakes origin inside the earth
What is the Focus
500
44% of the mass of the Earth is contained in this layer made of molten rock.
What is the mantle
500
large single landmass 220 million years ago that seperated to form the continents
What is Pangaea
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