Cause and Effect In the Rock Cycle

http://www.rocksandminerals4u.com/images/rock-cycle-diagram-im.jpg

An Igneous Rock starts out as liquid rock called magma.

There Are Two Kinds of Igneous Rock

• If magma cools and hardens inside Earth, it becomes an intrusive Igneous Rock.

• If magma comes to Earth’s surface, it is called lava.

• When lava cools and hardens on the surface of Earth, it becomes an extrusive Igneous Rock.

Igneous Rock can change to Sedimentary Rock

Andesite: An extrusive Igneous Rock Breccia: A Sedimentary Rockwww.mii.org/Minerals/photoandesite.html http://www.guilford.edu/geology/imagelibrary/MVC-048F.JPG

Moss weathers an Igneous Rock. The moss produces an acid that breaks

rock down into sediment.

http://wwwfs.org/2003/Iceland_Aug03/P8200288a.jpg

Sediments are transported by moving water to a lake or ocean.

Sediments are compacted by the weight of the water above.

Igneous Rock can change to Metamorphic Rock

http://www.beg.utexas.edu/mainweb/publications/graphics/granite-400.jpg

Granite: An Intrusive Igneous Rock Gneiss: A Metamorphic Rockhttp://skywalker.cochise.edu/wellerr/rocks/mtrx/6mrx-gneiss-flat2.jpg

An intrusive Igneous Rock is formed deep underground.

http://www.minsocam.org/MSA/K12/rkcycle/intrusives.html

An intrusive Igneous Rock is heated up by nearby magma, but does not melt.

http://www.windows.ucar.edu/earth/geology/images/batholith_sm.gif

The crystals become larger, and the rock becomes denser.

http://www.minsocam.org/MSA/K12/rkcycle/nonfoliated.html

Granite is an Igneous Rock often used to make countertops.