The summer wind, came blowin' in-from across the sea. It lingered there, to touch your hair-and walk with me. All summer long, we sang a song-and then we strolled that golden sand. Two sweethearts, and the summer wind. Like painted kites, those days and nights-they went flyin' by.
Iron is a trace mineral needed to make hemoglobin, the protein needed to carry oxygen throughout the body. Hemoglobin gives red blood cells their color, and stores most of the body s iron supply. Iron is also stored in muscle tissue, and helps supply the muscles with the oxygen needed to make them contract.
Lesson Summary. Iron is an abundant metallic element, formed by stellar fusion. It is mined primarily from rocks containing hematite and magnetite. Although once used in its pure form to make a variety of items (thus, the Iron Age and Iron Horse), today its principal use is as the primary component of steel.