Check any package of bacon, hotdogs, or cold cuts and chances are you'll find nitrites listed among the ingredients.
The bacteria take nitrogen out of the air and make it available to other living organisms in an amazing process.
Why doesn't the flame just continue to burn underneath the bell, no matter how flat you crush it? The answer is air.
Sugar cubes crumble and fall apart when they get wet. What causes sugar to dissolve?
Venus may appear to glow under moonlight but the planet also glows in infrared light.
You are heating up water and see bubbles form on the bottom of the pan. Is the water considered to be boiling?
Glow necklaces are fun to use at dances and concerts. Learn how they work!
How does fire pass from one burning stick to another unlit stick?
Fact or fiction: Scientists may have found a way to power a rocket using poop. Fact!
You've probably seen things decay before. How does the process work?