Rocks and Soils Activity

Use the following website to complete the handout "Rocks and Soils".........
 
 
Then use the "Moh's Hardness Scale" notes and the Internet to research how the Moh's Hardness Scale is utilized..... write 2-3 paragraphs to describe that use.  Answer these questions:
 
Which type of Science uses Moh's Hardness Scale
How is it used in "the field"
Practice with the samples I have laid out... is the Moh's Hardness Scale really useful? (Wed. AM)