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Hematite, a Shape-shifting Mineral From the Stone Age
science.howstuffworks.com/environmental/earth/geology/hematite.htm
You can find hematite found all over Earth, as well as Mars. The bloodstone the main source of iron and is also used in jewelry and painting.
How the Ancient Land Blob Gondwana Became Today's Continents
science.howstuffworks.com/environmental/earth/geology/gondwana.htm
Gondwana was a humongous landmass that persisted for 300 million years before it began to break up, forming all the continents in the modern Southern Hemisphere.
The Ring of Fire Is the Pacific's Volcanic Hotspot
science.howstuffworks.com/environmental/earth/geology/ring-of-fire.htm
Explore the Pacific Ring of Fire, a 24,900-mile zone with 75% of Earth's volcanoes and 90% of its earthquakes, shaped by dynamic tectonic activity.
Petrified Wood: A Journey From Tree to Stone
science.howstuffworks.com/environmental/earth/geology/petrified-wood.htm
Petrified wood can be found all over the world, but how is it created?
Venus: Earth's Blazing-hot and Bizarre Twin
science.howstuffworks.com/46009-venus-explained.htm
The atmosphere is crushing on Venus, and it's so hot lead would melt. But the planet still has a lot in common with Earth. We'll explain.
What Causes the Tectonic Plates to Move?
science.howstuffworks.com/environmental/earth/geology/plate-tectonics.htm
Discover the origins of the continental drift theory and how scientists explain these geologic phenomena.
5th-Grade General Knowledge Quiz
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Were you a whiz kid at school? How much do you remember from your days in 5th grade? Test your knowledge of 5th grade facts with this simple math, science, English, and history quiz!
The Great Yellowstone National Park Quiz
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It is the most famous national park on planet Earth. How much do you know about America's renowned Yellowstone National Park?
5 Most Amazing Caves
science.howstuffworks.com/environmental/earth/geology/5-amazing-caves.htm
The Doll's Theater of Carlsbad Caverns looks otherworldly and took ages to form. What other incredible sights await us below ground?
Can You Answer These Elementary School Questions Without Consulting a Child?
You might be a pub-trivia whiz, a college grad or an expert in your field ... but could you be decimated by a decimal or stumped by a stamen? Find out now with our quiz!