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What's the Deadliest Natural Phenomenon? Hurricanes may have a ferocious bark, but the bite of floods and droughts is worse.
Is the Red Sea Really Red? The Red Sea occasionally takes on a reddish-brown hue when a type of cyanobacteria dies off.
Will Hydrogen Fuel Really Work? Hydrogen powered cars will need a greener source of hydrogen.
What is it Like to Be a Bird? Discovering the mental faculties of birds, such as navigation.
Why do Chili Peppers Taste Hot? Compounds in chili peppers trigger body's pain response.
What is a Monsoon? if it isn't a storm, then what is it?
How Much Mail is Sent Each Day? You'd never guess how mow much mail goes out everyday.
Do Fireworks Scare Pets? Yes, and here's what you should do.
How Much Water is on Earth? Even though there's plenty of water, is it enough for everyone?
What is a Stem Cell? Embryonic tem cells can morph into any cell in the human body.
What is Heat Stroke? Hot days can not only be uncomfortable, but deadly too.
Why Does Ice Cream Cause Brain Freeze? Theories abound to explain this lightning-quick headaches, but the best advice? Eat slowly.
What is a Dry Thunderstorm? How can you get the lightning without the rain?
Can Matter Travel at Light Speed? Photons have a ticket to travel at light speed-but what about matter?
Can the Moon Cause Earthquakes? Probably not, but Earth might make moonquakes!
What is Smog? Just what is in that brown, hazy layer of air around you?
When a Hurricane Approaches, Should I Open the Windows or Tape Them? What not to do during a hurricane.
What is the Doppler Effect? The Doppler effect describes the difference between a sound and its source.
What is a Carbon Sink? Natural carbon storage systems may be blocked by global warming.
How Are Diamonds Made? Natural diamonds come from the Earth, but they can also come from a machine.
Does Boxing Cause Brain Damage? Research has long shown that head trauma - something no boxer can avoid -- puts one at risk for permanent brain damage.
How Are Utensils Made? General-purpose forks, knives and spoons are made from steel, an alloy whose main ingredient is iron.
Do Plants Have Sex? Plants know how do it in all sorts of kinky ways.
Will Eating Pet Food Kill Me? Chowing down pet food may not be as safe as it used to be.
Why are Frogs Disappearing? Kermit the Frog is more right now than ever: It’s not easy being green.
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