1 For example, Granite is a rock made of the minerals: quartz, mica, and other minerals. 2  Students will know that rocks and minerals are found in the earth's crust. 3  Students will realize that rocks and minerals are used to produce many important materials.
Muscle pain (myalgia) are pulling, gut-wrenching and spasmodic pain in the muscles: the term myalgia is composed of the Greek words myos for muscle and algos for pain. Muscle pain can spread (diffuse) or (local) occur in a certain place of the body.
Myalgia refers to muscle pain. The pain may be localized, as in a muscle strain or crush injury, or generalized pain caused by an underlying disease such as a viral infection. The most common type of localized muscle pain is caused by muscle overuse or injury from strenuous activity. Myositis refers to muscle inflammation.