â My partner and I had a long talk over breakfast this morning about term life insurance. We weighed the pros and cons and found ourselves wanting to talk to an expert on the matter. Was this Helpful?
Rocks are used all around us in many different ways. In the classroom, students use rocks everyday. Graphite, a metamorphic rock, is the part of the pencil used for writing.Slate, another metamorphic rock, was used to make blackboards in years past.Now most blackboards are constructed of man-made materials. Chalk is a soft form of limestone which is a sedimentary rock.ocks are used all around us in many different ways. In the classroom, students use rocks everyday. Graphite, a metamorphic rock, is the part of the pencil used for writing.
Based on current consumption, it is estimated that you-and every other person in the United States-will use more than a million pounds of rocks, minerals and metals during your lifetime including: 1  800 pounds of lead-Primarily used in the construction of batteries. mineral ore of chromium which is used in making steel, chromed' parts for automobiles and appliances and in the manufacture of chromic acid which is used to tan much of the leather used in making shoes, belts, purses, jackets, gloves etc.