Earth Guide - How does the Earth work?

Although much of the information on this site you probably already know, it's the way it is being presented that draws attention. Questions like 'where is the Earth located in the Milky Way galaxy?, 'where does the sky become space?' and 'how do water and carbon circulate?' do tend to make you think, aww that's kid's stuff. But what the heck, check the site and enjoy.