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earth studies chad b

learn about the earth

QuestionAnswer
how is an igneous rock made? melting and cooling
How is a sedimentary rock made? weathering/erosion compaction/compression.
How is a metamorphic rock made? heat and pressure.
Describe the crystals of an igneous rock that cools in the earth. large and coarse
Where are sedimentary rocks formed at? the bottom of the ocean
sediments that are pressed and stuck together are called Clastic rock
Organic rocks are what? sediments that form from the remains of plants and animals.
What theory is Alfred Wegener famous for? continental drift
What is subduction? When oceanic crust slides under other oceanic crust or continental crust.
where do earthquakes occur? transform and sometimes convergent boundaries.
Name the transform boundary in California San Andres fault.
What is Pangea? A long time ago all the continents used to be joined together to form a supercontinent called Pangea.
What happens in the Mantle that makes the continents move? convection currents
What is weathering? the breaking down of rocks to form sediments.
What is erosion? the movement of sediments.
which layer of earth is the thickest? the Mantle
Before lava reaches the surface it is called what? Magma
the mid Atlantic ridge is what kind of boundary? Divergent boundary
What two metals make up the core? nickel and iron
What type of fault does a transform boundary have? strike-slip
What kind of crust action occurs at a convergent boundary? recycling
What is deposition? its when sediments drop out of the flowing water or wind.
How many kinds of igneous rocks are there? two
what kind of rock is basalt? extrusive igneous
What kind of rock is granite? intrusive igneous
Created by: taksreview
 

 



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