Rocks+and+Minerals


 * This is the Home Page for "Rocks and Minerals" Click on any link to get more information about that topic.** **Information will be added to this page as the unit progresses.**

The softest mineral is talc. It is used in paper, powder, paint, cosmetics, lotions, and other basic household items. It would be number 1 on the Mohs hardness scale. The hardest mineral is a diamond, it is number 10 on Mohs hardness scale.

__**There are three categories of rock: Sedimentary, Igneous, and Metamorphic:**__

There are 2 categories of igneous rock: Intrusive and Extrusive.



[|Erosion] Click on this link to learn about erosion.
 * __For the homework assigned on January 5, 2010:__ click on the Erosion link. Read it! Then come back to this page and click on "discussion" at the top of the page. Click on your homeroom teacher's name and answer the question. Be sure to give an answer worthy of a 6th grader! Your answer must be submitted by Thursday, Jan. 7th.**

Rock Identification Activity This is the activity that we did in class to begin our unit.