|The Earth's solid ____ may be as hot as the Sun's surface.
|A ____ measures atmospheric (air) pressure.
|About 66 million years ago, a massive ____ hit the Earth.
|Severe thunderstorms sometimes produce ____ (ice balls).
|The Earth rotates (spins) towards the ____.
|Minerals are identified by their hardness and ____ (powder color).
|The study of weather is called ____.
|The water ____ of sand is greater than that of clay.