Everything we can see and touch, and quite a lot that we can’t as well, is made of tiny particles called atoms. Some substances, like particles of this iron, contain only one kind of atom. Iron is an ...

You may have noticed that the rock formations are very different colors. The rock formations on the left are from Red Rock State Park in Texas, and on the right is El Capitan Mountain in Yosemite ...

A NASA/ESA Hubble Space Telescope image released July 7, 2012, shows U Camelopardalis, a star nearing the end of its life located in the constellation of Camelopardalis (The Giraffe), near the North ...

X-ray microanalysis is an analytical technique that provides immense possibilities to extend beyond high resolution mapping of elements. Speed and precision are the real powers of X-ray microanalysis, ...

The body is, for all intents and purposes, an extraordinarily complex machine. This requires a multitude of parts all working together in complicated relationships from the micro- to macromolecular ...

"Quick Tips: Resources for Teachers” is a series of short videos providing down-to-earth advice and instructional tips to teachers of STC™, our signature science curriculum. Each “Quick Tip” offers ...

To survive in nature, all human beings require some compounds and elements which a body cannot make by itself. These compounds and elements called nutrients have to be taken in the form of a balanced ...