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Natural Wonder: Niagara Falls Quiz
play.howstuffworks.com/quiz/niagara-falls-quiz
All that majesty, power and water didn't stop Oscar Wilde from quipping about Niagara Falls being the second disappointment in the married life of many American brides who spend their honeymoon there. Test your knowledge of the famous natural site.
Chicxulub Crater: Where the End of the Dinosaurs Began
science.howstuffworks.com/environmental/earth/geology/chicxulub-meteor.htm
The Chicxulub meteor impact may have killed off the dinosaurs. Would they have lived if the meteor missed? Learn more about the Chicxulub meteor.
Which of today's animals lived alongside dinosaurs?
science.howstuffworks.com/environmental/earth/geology/dinosaur-contemporary.htm
Which of today's animals lived alongside dinosaurs? Some animals' ancestors lived with dinosaurs. Learn which current animals lived alongside dinosaurs.
If We Show You a Fossil, Can You Figure Out What Living Thing It Used to Be?
play.howstuffworks.com/quiz/we-show-you-a-fossil-can-you-figure-out-what-living-thing-it-used-be
Don't let those incredible dinosaur skeletons in the museum fool you -- the fossils of living things don't always look exactly like that person, plant or animal did while alive. See how many you can identify with this quiz!
Titanoboa: Exploring Colombia's Prehistoric Giant Snake
animals.howstuffworks.com/extinct-animals/titanoboa.htm
The extinct Titanoboa snake lived around 66 million to 56 million years ago. These things were massive and could reach 50 feet long and 3 feet wide making them the largest snake ever to have roamed the Earth.
How Iron and Steel Work
science.howstuffworks.com/iron.htm
The refining of iron ore is one of the most historically significant achievements of all time. Find out how iron gets turned into steel and what it's used for.
10 Cretaceous Animals That Weren’t Dinosaurs
animals.howstuffworks.com/animal-facts/10-cretaceous-animals-that-werent-dinosaurs.htm
Not all Cretaceous animals were dinosaurs. See 10 other animals in the Cretaceous period that roamed the Earth.