systematic enterprise

Jun 30th, 2015
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Science (from Latin scientia, meaning "knowledge") is a systematic enterprise that builds and organizes knowledge in the form of testable explanations and predictions about the universe.[1] An older and closely related meaning still in use today is that found for example in Aristotle,

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Science Form 2 Water And Solution.Ppt New - Presentation TranscriptWATER AND SOLUTION FORM 2Water is a ubiquitous chemical substance , composed of hydrogen and oxygen , that is essential for the survival of all known forms of life .In typical usage, water refers only to its liquid form or state , but the substance also has a solid state, ice , and a gaseous state, water vapor or steam . The five most commonly considered physical characteristics are temperature, taste, colour, odour and turbidity.Water is a tasteless, odorless liquid at standard temperature and pressure .The color of water and ice is, intrinsically, a very light blue hue, although water appears colorless in small quantities.Ice also appears colorless, and water vapor is essentially invisible as a gas.The freezing point of water is 0 Celsius or 32 Fahrenheit.Water boils at 100 degrees Celsius or 212 degrees Fahrenheit under standard conditions at sea level (at one atmosphere of pressure). The boiling point of water and any other substance depends on the atmospheric pressure, which changes with elevation. At higher altitudes, the pressure is lower, and so water boils at a lower temperature. If the bar

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