Rocks & Minerals ROCKS

Rocks Rocks are made of more than one mineral Could have other substances comprising them blue.utb.edu/.../PHYS1417SPR00/Unit3Lec.html

Rocks Classification classified by geologic process that formed them (origin of rocks) http://geology.com/rock-tumbler/tumbling-rough.shtml

Rock Classification How were the rocks formed - magma - erosion and layering - heat and pressure

Origin of rocks Igneous rocks are formed from the cooling of magma or lava Lava is magma that reaches the earth’s surface www.outreach.canterbury.ac.nz/.../igneous.jpg

Origin of rocks Sedimentary rocks formed from other rocks that are broken into small particles and moved by erosion (wind or water) particles are squeezed or cemented together Rocks are layered www.energyinst.org.uk/education/glossary/

Origin of rocks Metamorphic rocks formed from other rocks pushed deep into the earth’s crust Pressure and heat cause them to change shape, color, grain and structure http://www.classzone.com/books/earth_science/terc/content/visualizations/es0607/es0607page01.cfm?chapter_no=visualization

Properties Texture Grain Minerals Color

Texture Texture is how a rock looks and feels texture in rocks is determined by the size, shape, and pattern of a rocks grains. ocal.wasp.uwa.edu.au/.../rock/rock16.jpeg

Grain Size -- large, small Shape --smooth, rough, round jagged Pattern – rows, waves, swirls, beads or random patterns http://www.union.edu/PUBLIC/GEODEPT/COURSES/geo-10/metamorphic.htm

Rock cycle http://www.classzone.com/books/earth_science/terc/content/investigations/es0602/es0602page02.cfm