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28 Cards in this Set
- Front
- Back
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atmosphere
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the layer of gasses that surround the earth
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lithosphere
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the solid, outermost layer of the earth
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hydrosphere
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the layer of water that lies on the surface of the earth
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crust
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the thin, solid, outer layer of the earth
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what makes up the crust
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rock and soil
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how deep is the crust
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about 5-15 miles deep
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mantle
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the layer just below the crust
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it is thick and gooey like what
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cold tar
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it is made of
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semi-melted rocks
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inercore
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the layer at the center of the earth
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it is made up of what
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solid iron and nickel
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how is it solid
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intense pressures from the layers above it
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as you go from the crust towards the core the temperature
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increaces
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and the pressure
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increaces
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name the 3 ways heat can be transsfered
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conduction, convection, and radiation
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conduction
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is the transfer of heat from a hot object to a cooler object by direct touch
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convection
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is the transfer of heat by the circular movement of a hot liquid gas or due to differences in density
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hot liquids and gasses are more or less dense
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less
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hot liquids and gasses will do this
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rise and cool off
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and cool liquids and gasses will do this
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sink and begin to warm up again
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what are earths layers, in order, outside to center
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crust, upper mantle, lower mantle, outer core, inner core
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divergent
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movement of plates away from each other
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convergent
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movement of plates toward each other
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lateral
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a side to side slide
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subduction
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movement of plates where one plate slides under another
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Continental Drift theory
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the theory that continents slowly move across earths surface in a process taking millions of years
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Alfred Wegner
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the German scientist who first proposed the idea of continental drift
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Pangea
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the name of the giant super-continent that existed over 200 million years ago and gave raise to today's continents
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