When Were the Ice Ages?
When Were the Ice Ages? The Ice Ages ended about 10,000 years ago after lasting about two million years. At its greatest extent the ice covered nearly 30 per cent of...
Read More
Where Is Lake Superior?
Lake Superior is the largest of the five Great Lakes of North America. Lake Superior is between America and Canada. It covers an area of nearly 32,000 square miles. But...
Read More
What Is Shale?
What Is Shale? Shale is a fine-grained, earthy, sedimentary rock rather like clay, but, unlike clay, it is formed in thin layers. It is usually harder than clay and...
Read More
When Does a River Flow Underground?
When Does a River Flow Underground? An underground river is formed when the top soil of the land makes it extremely easy for water to pass through to a more solid soil...
Read More
What Makes a River Bend?
What Makes a River Bend? A river always takes the easiest course through channels and soft ground to the sea, flowing swiftly down mountain sides but much more slowly...
Read More
What Is the Difference Between Shampoo and Soap?
What Is the Difference Between Shampoo and Soap? Your alarm goes off and you roll out of bed and head straight to the shower. As you step into the flow of warm water...
Read More
Who Was Chingachgook?
Who Was Chingachgook? In his world famous book, James Fenimore Cooper names Chingachgook, the Mohican freind of Natty Bumppo, better known as Hawkeye the Hunter....
Read More
What Is Obsessive-compulsive Disorder and How Is It Treated?
What Is Obsessive-compulsive Disorder and How Is It Treated? For some people, living with obsessions is a very real thing that affects their life in many ways. People...
Read More
What Is BASE Jumping and Who Invented It?
What Is BASE Jumping and Who Invented It? In 1978, filmmaker Carl Boenish, Jr., along with his wife, Jean, and friends Phil Smith and Phil Mayfield, climbed to the top...
Read More
Why Do Deserts Form?
Why Do Deserts Form? Deserts in hot climates owe their origin to lack of water resulting from the capacity of warm air above the land area to retain most of the...
Read More