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Are 'Crocodile Tears' Real? Yes, crocs do shed tears while chomping down on prey, but scientists aren't sure why.
Why Does Copper Turn Green? Like other metals, it corrodes when left out in the elements.
How Much Blood Is in the Human Body? If you emptied it out, you could fill five soda bottles with it
How Long Do Stars Live? Stars live different lengths of time depending on their mass.
Can Rocks Grow? Don't rush out to buy a pet rock just yet.
Where Did Potatoes Come From? Potatoes had to jump continents to get to the United States
Have There Always Been Continents? Ancient Earth looked a lot different than it does now.
Who Invented Scotch Tape? The inventor tried many different things before it finally stuck.
How Do Cyclones, Hurricanes and Typhoons Differ? You say hurricane, I say typhoon.
What Makes Hair Curly? Follicle shape (and humidity) influence the shape of your hair.
What Was the Deadliest Day in American History? On Sept. 17, 1862, the battle of Antietam took thousands of lives.
How is Earth's Age Calculated? As science progressed so did the accuracy of Earth's age.
What's the Origin of Chewing Gum? Even ancient civilizations chewed gums made from trees and other plants.
Why Do Cats Land on Their Feet? Finely-tuned feline balance and flexibility help Fluffy land on her feet.
What is the Average American Woman's Bust Size? The average bra size has increased from 34B to 36C.
Why Do Our Mouths Water? Extra copies of certain gene may make our mouths water more.
Will Earth Always Be Here? Good times on Earth won't last forever if the Sun has it's day.
How Environmentally Friendly are Plastics? Plastics have helped to mold our modern world, but cleaning them up is a lot trickier than a trip to the recycling bin.
What Makes Us Fart? Swallowed air and happy intestinal bacteria turn us all into gas factories.
Can a Broken Toe be Fixed? Find our what your solutions there are for a toe injury.
Does Carbonation Have Flavor? If you ask a fruit fly, the answer is an emphatic "yes
How Much Did Hurricane Katrina Cost? Find out how much damage Hurricane Katrina did to checkbooks.
Why Do We Have an Appendix? Biologists believe the human appendix is a vestigial organ.
How Long Have People Been Fighting Over Iraq? Iraq's location makes it fertile ground for battles.
What is a Hemorrhoid? Hemorrhoids are distended and swollen veins in the lining of the anus.
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