a scale ranking ten minerals from softest to hardest; used in testing the hardness of minerals. Define DENSITY: A measure of how much matter there is in a given amount of space.
Jerusalem is a hilly city so the altitude varies but it is approximately 750 Meters (2,500 feet) above sea level.
the height to which something is elevated or to which it rises: The elevation of the tower is 80 feet. 2. the altitude of a place above sea level or ground level. 3. an elevated place, thing, or part; an eminence.