How to Identify Quartzite
Quartzite is sandstone that has been turned into solid rock under heat and pressure over time. The heat and pressure break through the quartz grains instead of around them, as is the case with sandstone. The term "quartzite" implies high quartz [... more] eHow
Live Bacteria Could Reduce Earthquake Damage
Scientists hope to turn dangerous sandy soils into solid rock by injecting bacteria into the ground. When earthquakes strike in sandy soil, the ground can turn to a liquid-like state that proves disastrous for buildings. The phenomenon, called ... [... more] Live Science
Cherokee Creation Myths - Native American
Long ago, the earth was just a big island, floating in a bigger ocean. The earth was hanging from four cords coming down from the sky, which was made of solid rock. It was dark all the time and the animals couldn't see where they were going, so ... [... more] Bella Online
