* Quartz is one of the most common substances found in nature. Now, clear your head, meditate to some groovy new-age music and consult your crystal ball to divine which of the following is NOT a use for quartz crystals.
* Did you know that, not only do crystals grow, but also that they're available in a range of colors? At the Smithsonian, the Colate Crystal is even set off by a sparkly white mineral background on which it grew. What color is this crystal?
* What is the most famous diamond in the gem collection at the Smithsonian Museum?
* People who live in glass houses shouldn't throw them, but which stones are rated the softest on 'Moh's Scale'?
* What geologic theory states that the Southern Hemisphere continents were once part of a supercontinent called Pangaea?
* Everyone has their own version of what Hell might be like, but one Corinthian was eternally punished by being constantly bowled over by his own personal boulder. Who was this poor man?
* As the sea floor spreads, massive geologic plates are slammed together under tremendous pressure. What is an active ridge (or plate edge) called when it is forced downwards towards the Earth's core?
* The wearing away of soil and rock by the action of streams, glaciers, waves, wind, underground water, and gravity.
* The laying-down of rock-forming material by any natural agent.
* Conversion of newly deposited sediment into a solid rock.
* Process of exposing previously buried rock at the Earth's surface by removal (erosion) of the material on top of it.
* Naturally occuring molten rock material generated and found within the Earth.
* Rock formed by cooling and solidification of lava above the Earth's surface.
* A layered rock resulting from the consolidation of sediment.
* Destructive process by which rocks are changed on exposure to atmospheric agents at or near the Earth's surface with little or no transport of loosened or altered material.
* Solid fragmented material transported and deposited that forms in layers of loose, unconsolidated material.
* Emission of magma onto the Earth's surface.
* Region with less than all of the voids between the dirt or rock filled.
* Movement of water through the soil surface into the ground.
* Surface flow of water that appears after precipitation.