Muscle Types Of Humans
20 Feb 2008 There are about 650 muscles in the human body. Muscles are made of fibers that enable them to shorten and lengthen, p..- 143
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How The Stocks And Stock Market Work
20 Feb 2008 The stock market appears in the news every day. You hear about it any time it reaches a new high or a new low, and you a..- 139
speeches
Depletion Of The Ozone Layer
20 Feb 2008 Up in the stratosphere, small amounts of ozone are constantly being made by the action of sunlight on oxygen. At the sam..- 158
speeches
How An Air Conditioner Works
20 Feb 2008 Air conditioners and refrigerators work the same way. Instead of cooling just the small, insulated space inside of a ref..- 136
speeches
Planet Mars
20 Feb 2008 Q) Why is Mars so cold? A) Mars is cold because it is much farther from the Sun than Earth. Because of this, Mars recei..- 138
health
White Blood Cells
19 Feb 2008 Whenever a germ or infection enters the body, the white blood cells snap to attention and race toward the scene of the c..- 368
health
Blood Plasma
19 Feb 2008 Blood plasma is the liquid component of blood, in which the blood cells are suspended. It makes up about 55% of total bl..- 359
general-articles
Dew
19 Feb 2008 Dew is water in the form of droplets that appears on thin, exposed objects in the morning or evening. As the exposed sur..- 347
general-articles
Types Of Water
19 Feb 2008 In general, water for drinking and cooking should be wholesome. It should be both potable and palatable. It must be bact..- 314
general-articles
Foam On The Ocean
19 Feb 2008 Each water molecule contains one oxygen and two hydrogen atoms. The bonds that hold these atoms together are partially..- 298
general-articles
Sun's Influence On Earth
19 Feb 2008 The Sun's influences on the Earth are numerous. The sun radiates light, which combined with the rotation of the Earth on..- 356
