Science Vocabulary -3rd test

Science Vocabulary -3rd test - Science Vocabulary Ch 12-Air...

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Science Vocabulary Ch. 12-Air 1. Atmosphere-thin blanket of air is made up of layers , the troposphere (nearest earth), stratosphere (includes ozone layer), mesosphere, thermosphere -78% nitrogen, 21% oxygen, 1% argon and up to 4% water vapor 2. Nitrogen Cycle-goes from air into plants and animals and eventually back to the air 3. Oxygen Cycle- converted to ozone and then changed back to oxygen in the stratosphere -involved in oxidation of plants and animal materials and is eventually returned to air 4. Temperature Inversion-occurs when a layer of cold, dirty air is trapped under a layer of warmer air- the cold air can be polluted 5. Pollutant-chemical that is in the wrong place and causes problems there -includes dust storms, noxious gases from swamps, and ash and sulfur dioxide from erupting volcanoes -smoke and gases produced by burning fuels and the fumes and particulates emitted by factories 6. Industrial Smog-kind of smog produced in cold, damp air by excessive burning of fossil fuels -combination of smoke and fog with sulfur dioxide, sulfuric acid and particulate matter 7. Particulate Matter-solid or liquid particles of greater than molecular size -commonly takes form of soot or fly ash from coal combustion 8. Electrostatic Precipitator-smokestack gases which charges particles 9. Wet Scrubber-which passes gases through water 10. Volatile Organic Compounds-major contributors to fog -come from gasoline vapor, other fuels and some consumer products 11. Photochemical Smog-results when hydrocarbons, nitrogen oxide and ozone are exposed to bright sunlight 12. Catalytic Converters-automobiles reduce photochemical smog by oxidizing unburned hydrocarbons 13. Acid Rain-Nitrogen oxides (automobiles and power plants) and sulfur oxides (power plants) can dissolve in atmospheric moisture -can corrode metals and erode marble buildings and statues
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14. Daughter Isotopes-radon can accumulate indoors and when inhaled it creates radioactive daughter isotopes which can accumulate in the lungs - can produce a significant risk of lung cancer 15. Allotrope-different forms of the same element in the same physical state 16. Greenhouse Effect-occurs when infrared radiation emitted from the earth’s surface cannot escape -carbon dioxide and other gases contribute to this 17. Global Warming-a result of the greenhouse effect an increase in the Earth’s average temperature Ch. 13-Water 1. Heat Capacity-amount of heat an element needs to raise its temp. 1degree Celsius
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Science Vocabulary -3rd test - Science Vocabulary Ch 12-Air...

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