Environmental Science

During the summer I am always hearing about ozone warnings in my city. This ozone is bad. But then I hear about the ozone layer, which is good. How can ozone be both good and bad?

Charcoal is carbon. Activated charcoal is charcoal that has been treated with oxygen to open up millions of tiny pores between the carbon atoms. What does this have to do with its absorbancy?

Gravity is a force that we experience every minute of our lives, but hardly notice or give a passing thought to in our daily routines. Have you ever wondered what gravity is and how it works? Learn about the force of gravity in this article.

By Julia Layton

One way to store energy is to use a battery, like a lead-acid battery or a nickel-cadmium battery, but are there lighter or longer-lasting ways to store energy? There must be a better way!

Let's say you have a nice fire going, and it's reduced down to a pit of hot "glowing embers." If you now toss a piece of wood, or even a sheet of paper, onto this fire, you see a huge puff of smoke as it heats up.

A fascinating article that describes the work of The Nature Conservancy and the benefits of its conservation projects to our environment and ecology!

You've probably seen solar cells on calculators, call boxes, road signs, homes and businesses. But how do solar cells work?

By Jessika Toothman & Scott Aldous

You've probably never noticed how many of these you use everyday, but HowStuffWorks took the time to count them and take them apart to see what's inside!

By Marshall Brain

Diamonds are beautiful and popular - but not everyone can afford these gems. While man-made versions are less expensive, most lack the luster and brilliance of the real thing, except moissanite. See how it compares!

By Melissa Russell-Ausley

Electrical power is a little bit like the air you breathe: You don't really think about it until it is missing. There are good reasons the power grid distribution system works the way it does, though it can lead to some big problems.

By Marshall Brain & Dave Roos