By: Maria C Collins
Theories about the Earth’s core are altering fast. For a long time scientists believed that, the Earth’s core was pure molten iron. However, new research shows that along with a large amount of molten iron, there are other elements within the core, for...
By: James Phillips
Ever wondered why some areas get earthquakes and others don’t? The answer to that is also the reason that kids trying to “dig a hole to the other side of the world” may find the center of the earth a good bit hotter...
Facts about the earth's core
By: Rex Trulove
It should be noted that many of what are considered to be facts about the earth's core are actually educated guesses. Man has not reached anywhere near the core, so a lot of the facts are interpolations rather than concrete. Despite this, there are many...
By: Christine Zibas
Akin to the old adage, “Does a tree falling in a forest make a sound if no one is around to hear it?” the story of the sailing stones of Death Valley causes many to ponder, how can a stone make a path...
By: Shannon Farlouis
In Death Valley, there are sailing stones, or moving rocks, that move along the valley floor without human or animal intervention. Their force of movement has not been confirmed and is still being researched today. This has often been called a mystery or geological phenomenon...
By: Michael Totten
The stones of Death Valley move on their own. A few of the sailing stones are as heavy as 80 pounds. Some stones have moved as far as 659 feet in a single winter, leaving long trails behind them. Some do not move at all...
By: Hai Shunxi
While much of the western half of North America is covered by rank after rank of rugged mountains, the geologic history of the region is long, rich and complex. Although they may resemble one another in form and majesty, each mountain range contains within its...
By: Julie Thomas-Zucker
North America has a large salt production. Most productive mines have waterways nearby to aid in transporting it. However, the main salt mines are in New York, Kansas, and Michigan. Additional zones occur in the southern United States from Alabama to Texas and along the...
Orogeny: The ways that mountains form
By: Hai Shunxi
Orogeny, or orogenesis, is the term earth scientists use for the creation of mountains. It is a rather small word for something that describes titanic forces. Mountains form at places where the Earth's crust is battered by movement of the tectonic plates making up the...
By: B. W.
The Appalachian Mountains are a mountain range in Eastern North America that cross through a number of states and Canada. While most people have heard of the Appalachian Mountains, they have had both historical and geographic significance that has helped shape the formation of the...

 

1 75 76 77 78 79 93