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 Burj Khalifa stands at 828 meters (2,716.5 feet) tall, soaring over Dubai. Itâs three times as tall as the Eiffel Tower and nearly twice as tall as the Empire State Building. Laid end to end, it pieces stretch over a quarter of the way around the world. 2.