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Plate techtonics quizeroo
Vocabulary test
23
Science
7th Grade
02/27/2013

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Term
nuclear waste
Definition
Radioactive material left over from nuclear power plants.
Term
composite volcano
Definition
A type of volcano with violent eruptions, gassy magma. Also known as stratovolcanoes.
Term
crust
Definition
The top outermost layer of the Earth.
Term
inner core
Definition
Layer of the Earth that is the hottest and is a solid.
Term
Pangaea
Definition
Supercontinent that existed about 350 million years ago.
Term
lava
Definition
Hot, molten rock that reaches the Earth's surface.
Term
shield volcano
Definition
A type of volcano that is broad with gentle slopes and is low in silica which flows easily.
Term
landform
Definition
Any physical shape found on the Earth's surface.
Term
mantle
Definition
The layer of the Earth that contains both liquid and solid.
Term
lithosphere
Definition
The area of the Earth contains the solid portion of the crust and the upper portion of the mantle.
Term
continental drift
Definition
Theory that the continents were attached and then drifted apart.
Term
asthenosphere
Definition
Layer of the Earth directly beneath the lithosphere that is hot and has soft rock.
Term
cinder volcano
Definition
A type of volcano that has eruptions that throw material up into the air and onto the volcano changing the shape of its top.
Term
geological time
Definition
Large period of time involving thousands, millions or billions of years is considered.
Term
outer core
Definition
Layer of the Earth that is liquid
Term
Paleontologist
Definition
Studies fossil to obtain evidence regarding the Earth's history.
Term
Plate tectonics
Definition
Theory that the Earth's surface is made up of plates that are constantly in motion.
Term
extinct
Definition
A volcano that can no longer can erupt is considered.
Term
dormant
Definition
A volcano that hasn't erupted in a long time.
Term
active
Definition
Volcano capable of erupting.
Term
volcanologist
Definition
Scientists that study volcanos.
Term
magma
Definition
Hot, molten rock found inside volcanoes.
Term
Continent
Definition
Any of the world's 7 main land masses
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