What Is Nitrogen
All living things are constantly searching for nitrogen in a form their bodies can use. Nitrogen makes up an important part of the bodies of humans, plants, […]
All living things are constantly searching for nitrogen in a form their bodies can use. Nitrogen makes up an important part of the bodies of humans, plants, […]
Basically, a diamond is a beautiful gem. So we might say that its beauty makes it desirable and valuable. The diamond is also the hardest sub- stance
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Uranium has existed on the earth for billions of years, but until man tried to make an atomic bomb and use atomic energy, most people did not
A diamond is the hardest substance known to man. And diamonds were formed by being “squeezed together”. This happened. according to scientists, about 100,000,000 years ago. At
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Did you know that the continents of the world rest on granite? It is the hard rock that forms much of the earth’s outer crust. The name
Platinum is a metal—but what an amazing metal it is! It is greyish white in color, and its name comes from the Spanish Plata and means “little
Aluminum is a silvery-white, lustrous metal that is only about one-third as heavy as iron. It can be drawn out into wires that are finer than the
Most of us know talc only in the form of a body powder. But talc has many important uses. Talc is a mineral—the softest mineral known to
Suppose you are in a ship crossing the ocean, or making your way across some huge desert that has no landmarks. How could you describe your exact
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The Antarctic region is the area around the South Pole. It includes the continent of Antarctica, which is the fifth-largest continent. It is almost as large as
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A fossil is the remains of plants and animals preserved in rock. Sometimes they take the form of shells, bones, scales, or other hard parts of animals.
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