How Long Have Apartments Been Around?
How Long Have Apartments Been Around? The word “apartment” comes from the French word appartement and the Italian word appartimento, both of which mean “a separated...
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How Do Paper Wasps Make Their Paper?
How Do Paper Wasps Make Their Paper? Paper wasps are the paper-makers of the insect world. These social insects live together and build nests made of paper. They make...
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What Keeps an Igloo Warm Inside?
What Keeps an Igloo Warm Inside? If you were an Eskimo living in the far north of Canada, you might build your winter house from blocks of snow and sleep on a bed of...
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What Makes the Bubbles Form When Water Boils?
What Makes the Bubbles Form When Water Boils? When you boil water in a tea-kettle, you heat it to the point where it changes from a liquid to an invisible water gas...
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Why Marines Are Called Leathernecks?
Why Marines Are Called Leathernecks? In the old days, the servicemen in the United States Marine Corps wore leather bands around their throats. Because of this, members...
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Do Male Sea Horses Have Babies?
Do Male Sea Horses Have Babies? A sea horse is a strangely shaped fish with a long, tube-like snout. Sea horses get their name because their heads and necks look very...
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How Long Has Been the Number Zero Around?
How Long Has Been the Number Zero Around? The first use of a zero-like symbol didn’t appear until around the 3rd century B.C. in ancient Babylon. The Babylonians...
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How Do Microwave Ovens Work?
How Do Microwave Ovens Work? In a microwave oven, you can cook a hamburger in only four minutes. Conventional ovens cook food by heating air which, in turn, heats the...
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How Do Termites Digest Wood?
How Do Termites Digest Wood? Termites are small, ant-like insects that eat nearly anything made of wood. Oddly enough, they cannot digest the wood they eat. Termites...
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What Is Gelatin Made From?
What Is Gelatin Made From? When you eat gelatin, you are eating a dessert made from the bones of cows and other food animals. It is made by prolonged boiling of skin,...
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