objective 3 lesson 5
Terms
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- granite rock
- the rock of the crust (lithosphere) light colored and relatively low in density
- associations with cryosphere
- glaciers and ice
- what does the earth have high continentals and low ocean basins
- continents have low density rock so they float higher than the high density floor rock, but both rock types are still lower in density than the asthenosphere on which they rest
- isostasy
- rising and sinking of the crust to maintain its balance as it floats on the interior
- iron and nickel
- give the core great density
- basalt
- rock of the ocean floor, darker than granite and somewhat denser
- density
- mass per unit of volume of a substance
- lithosphere, oceanic crust, continental crust
- makes up the earths crust
- associations with mantly
- solid and has hotspots
- associations with troposphere
- most dense layer of air
- associations with outer core
- liquid rock layer and magnetic field generator
- associations of atmosphere
- gases, 78% nitrogen, 21% oxygen
- associations of stratosphere
- ozone
- mantle
- the layer underneath the lithosphere makes up most of the mass of the earth