miércoles, 29 de septiembre de 2010

Vocabulary #12

fault: a carck in the crust, whose sides show evidence of motion
geologist: a scientist whoi studies Earth

magma: hot, molten rock deep below Eath's surface

lava: magma that reaches Earth's surface

weathering. the breaking down of rocks into smaller pieces
eroison: the picking up and carrying away of pieces of rock
deposition: the dropping off of bits of eroded rock
meteorite: a chunk of rock from space that strikes a surface

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