Earth
Volcanoes
Glaciers
100
4 layers of earth
What is the inner core,outer core,mantle and crust
100
has not had an eruption for at least 10,000 years and is not expected to erupt again in the future
What is a extinct volcano
100
large masses of thickly packed ice that is constantly moving
What is a glacier
200
layer of rock laying blow the crust,moves slowly because of great pressure
What is the mantle?
200
a mountain that forms when red-hot melted rock flows through a crack onto earths surface
What is a volcano
200
a period in earth history when ice on the polar caps expanded due to an overall loweing of earths temperatures
What is an ice age
300
liquid layer, lies blow mantle made up of melted iron.
What is the outer core?
300
pumice and obsidian
What are 2 types of volcanic rock
400
made up earths outer most layer,it is deeper under continents.
What is the crust?
400
is an active volcano hat is not erupting,but supposed to erup again
What is dormant volcano
500
the gradual movement and formation of comtinents
What is continental drift?
500
it is hot melted rock that lays under the earth
What is magma
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