domingo, 26 de septiembre de 2010


1.Fault: a crack in the crust, whose sides show evidence of motion.

2.Geologist: a scientist who studies Earth's surface.

3.Magma: hot, molten rock deep below Earth's surface.

4.Lava: magma that reaches Earth's surface.

5.Weathering: the breaking down of rock into smaller pieces.

6.Erosion: the picking up and carrying away of pieces of rock.

7.Deposition: the dropping off of bits of eroded rock.

8.Meteorite: a chunk of rock from space that strikes a surface ( such as Earth or the Moon ).

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