Who Invented Teflon and How Was It Discovered?
Many inventions have been the consequence of a “Eureka!” moment. These ideas have come about as the result of someone who was able to see what …
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Homework Help & Study Guides
Showing guides and explainers filed under Homework Help & Study Guides.
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Mysteries of a Lost World: Easter Island Statues and Inhabitants
The statues of Easter Island gaze over the barren landscape. These works of art have been a source of mystery since Europeans first discovered the …
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Stages of Sleep: What Goes on in Your Body and Your Mind?
You travel to another dimension daily, a wondrous land limited only by your imagination. Typically, we all spend about one-third of our lives asleep, …
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Nicolaus Copernicus: Challenging the Status Quo
What if you had information you thought was true, yet went against what astronomers trusted and people, including the Catholic Church, believed? …
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How Do Landfills Work: Learn About What Happens to All of Our Trash
Banana peels, paper towels, plastic wrappers and more. Have you ever wondered what becomes of all the stuff you toss in the garbage can? Learn how …
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The History of the Moors in Europe: Who Were the Moors?
The Berber inhabitants of North Africa were many things. To the ancient Romans, they were the Mauri, Latin for “tending their herds” and …
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Wasp Facts: Learn About Wasp Lifestyles, Habitats and Stings
Unlike their relatives the honey bees, wasps do not have many devoted fans. In this introduction to wasps, learn about where the often-unwanted …
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Where Do Stem Cells Come From, How Are They Used and Why Is This Research Controversial?
Perhaps you have heard medical news or debates about the use of stem cells in life changing or life saving situations. Have you wondered where stems …
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Trojan War Study Guide: What Was the Trojan Horse?
Ancient Romans and Greeks used mythology (a combination of folklore, history and customs) as a way to deal with life. The gods and goddesses, …
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Who Was Lewis Carroll and Why Did He Write Alice in Wonderland?
The man known as Lewis Carroll was really two people. Born Charles Lutwidge Dodgson, he adopted Carroll as his pen name and wrote several novels …
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