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.
Definition of elevation for English Language Learners. : 1  the height of a place. : 2  an act or result of lifting or raising someone or something. : 3  a place (such as a hill) that is higher than the area around it.