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.
This is a list of United States states by elevation. Elevation means the height of something above sea level. The highest point in the U.S. is Mount McKinley at 20,320 feet (6,194 m) above sea level. The lowest point on land in the U.S. is Badwater in Death Valley at 282 feet (86 m) below sea level.