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How Do Mirrors Work?
Most mirrors are made of a sheet of polished glass with a thin coat of silver paint on the back. The silver backing reflects…
How Do Birds Fly?
Most birds are well suited for flying. First of all, a bird has feathers and wings, and powerful muscles in its breast with which…
How Does a Squid Use Its Ink to Escape Enemies?
Squid (and also octopus) belong to a group of animals called "Cephalopods" and these animals all shoot out ink, they jet it out with…
How Do Glaciers Form?
A glacier is a great river of ice that moves slowly down a mountain. Glaciers form in high mountain valleys, where summers are so…
Why Does the Camel Have a Hump?
The camel's best known feature is the hump on its back. The camel's hump is mostly fat that provides nourishment when food is hard…