Rock, Mineral, Crystal, or Gemstone?
Rocks and minerals are all around us and used every day, perhaps without us even being aware of them. Besides making up the solid, supporting surface of the earth we live and move upon daily, rocks and minerals are used in surfacing roads, in the concrete…
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Astronomy
A Map of the Sky
Niagara Falls, the Grand Canyon, Old Faithful... we know they're spectacular sites, but how did we find out…
Physics
What Is An Atom?
Atoms are the extremely small particles of which we, and everything around us, are made. A single element,…
Chemistry
What Makes a Candle Burn?
Have you ever wondered how a candle works? If you haven't, think about it for a while. Why does it take so…
Biology
We Live In Two Distinct Visual Worlds
Have you ever wondered what it would be like to live on a planet where all the colors were different from what…