What Causes a Cold?
What Causes a Cold? Common colds are caused by a type of germ known as a cold virus. This germ infects your nose and throat, causing you to sneeze and sniffle, and your...
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How Does a Vacuum Bottle Work?
How Does a Vacuum Bottle Work? A vacuum bottle is a bit like a super-insulated jug. It works by insulating whatever is stored in it. A vacuum bottle (sometimes called a...
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What Causes Frost?
Frost or hoarfrost causes or occurs when air temperatures of the surface dip below freezing and ice crystals form on plant leaves, injuring, and sometimes killing,...
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This happened to us as once our 10 year old daughter, Lisa, had a bad cold and was home from school. I called to ask how she was feeling and she said better, so I asked...
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