Science; Earth Science Final Exam Study Guide Test.

Science; Earth Science Final Exam
Study Guide Test.

crust

mantles

outer core

inner core - CORRECT ANSWER 4 layers of earth



outer core - CORRECT ANSWER only liquid layer of earth



crust - CORRECT ANSWER outermost layer of earth



continental crust

oceanic crust - CORRECT ANSWER two parts of crust



continental crust - CORRECT ANSWER makes up the continent



40 to 70 km thick - CORRECT ANSWER the thickness of continental crust



aluminum silicates - CORRECT ANSWER the continental crust is made up of light granitic rocks made up
of mostly ________



oceanic crust - CORRECT ANSWER underlies the ocean floor



5 km thick - CORRECT ANSWER the thickness of oceanic crust



magnesium silicate - CORRECT ANSWER the oceanic crust is composed of dense basaltic rocks made up
of_____

, mantle - CORRECT ANSWER semi solid , rocky , and very hot layer



2900 km thick - CORRECT ANSWER the thickness of mantle



80% - CORRECT ANSWER how many percent does the mantle makes up the earth



ferro magnesium silicate rocks - CORRECT ANSWER mantle is composed of these rocks



900 degrees celsius - CORRECT ANSWER the top layer temperature of mantle



1000 degrees celsius to 3,700 degrees celsius - CORRECT ANSWER as goes deeper in mantle , the
temperature increases from __________



lithosphere - CORRECT ANSWER a rigid layer that can break under stress



tectonic plates - CORRECT ANSWER major and minor blocks in the lithosphere



tectonic plates - CORRECT ANSWER the lithosphere is composed of these plates



asthenosphere - CORRECT ANSWER contains hot molten rocks or magma



180 km - CORRECT ANSWER the thickness of asthenosphere



convection currents - CORRECT ANSWER a heat energy traveling upward from the hot lower mantle to
the cooler upper mantle



convection currents - CORRECT ANSWER tend to move a fluid or gas particles from one place to another