Estuaries and coastal wetlands: Where freshwater and saltwater mix
By: J. Lang Wood
Estuaries are narrow bodies of water that branch out from rivers and streams as they empty into larger bodies of water along coastal areas. Estuaries are generally surrounded by coastal wetlands, low areas of land that are saturated for all or much of the year...
Geological processes that occur within Earth's interior
By: Charles Ray
The earth is hurtling through space in its orbit around the sun at a speed of some 67,000 MPH, and rotates on its axis at a speed of over 1,000 MPH at the equator. Yet, someone standing on the equator would hardly...
By: Dr. Bryan Katz
The Earth is a terrestrial planet consisting of a crust, mantle, molten outer core, and solid inner core. The Earth’s crust is rich in silicon, aluminum, and other elements less massive than iron. Most of the Earth’s iron and heavier elements are located...
Undersea volcanoes: Submarine mountains or guyots
By: Dean Traylor
The great Portuguese explorer, Ferdinand Magellan, had no idea what he was sailing on. In 1521, he reached a large body of water with favorable winds and calm seas. He named it Mar Pacifico (translated, “peaceful seas”). Little did he know that the...
By: Julie Thomas-Zucker
Living sustainable systems refer to green living or living systems that have little impact on natural resources. Six key features of these systems include 1)using less, 2)recycling more, 3)lowering debt, 4)eating more natural products, 5) going solar, and 6)exercise more. Making these changes makes life...
By: Jose Juan Gutierrez
Submarine canyons are steep-sided valleys extending along the continental shelf and into the continental slopes. Some submarine canyons are extensions of rivers or continental faults. A continental shelf is the part of a continent that extends under the sea shore and into the deep-ocean floor...
Defining the term 'dry lightning'
By: A. Smith
Dry lightning and heat lightning are often confused. Heat lightning is distant lightning is distant lightning without thunder or rain. It usually occurs when the weather is hot and muggy. Dry lightning is nearby lightning with thunder and with little or no rain. It usually...
The seven deadly seas
By: Dean Traylor
Mythologies from around the world are filled with tales of treacherous waters. And there’s no wonder why the ocean played a major part in the ancient people’s beliefs. Sea-faring cultures such as the Vikings, Greeks, Romans, and Phoenicians knew firsthand the dangers the...
By: Shannon Farlouis
The Appalachian Mountains have a long history that dates back to the early 1500s. The birth of these mountains began about 480 million years ago. Scientists have found that a collision of continents is what formed these mountains. When the mountains were first formed, they...
By: T. Scott Randolph
Storms. Some people absolutely love them, other people are petrified of them. They can be beautiful with the displays of lightning or devastating with hail, damaging winds or even a tornado. What are the conditions that actually cause these storms to happen? Most people roll...

 

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