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TeachMeFinance.com - explain Plasma Plasma The term 'Plasma' as it applies to the area of fusion can be defined as 'A 'Fourth State of Matter' in which many of the atoms or molecules are ionized. Plasmas have unique properties compared to solids, liquids, and gases. Most plasmas can be thought of at first as extremely hot gases, but their properties are generally quite different. Some (but not all!) Examples: the sun, fluorescent light bulbs and other gas-discharge tubes, very hot flames, much of interplanetary, interstellar, and intergalactic space, the earth's ionosphere, parts of the atmosphere around lightning discharges, and of course fusion plasmas'. The term 'Plasma' as it applies to the area of Earth observation can be defined as ' A fourth state of matter (in addition to solid, liquid, and gas) that exists in space. In this state, atoms are positively charged and share space with free negatively charged electrons. Plasma can conduct electricity and interact strongly with electric and magnetic fields. The solar wind is actually hot plasma blowing from the sun. See magnetosphere'. The term 'Plasma' as it applies to the area of the weather can be defined as ' Any ionized gas; that is, any gas containing ions and electrons'. Previous 5 Terms: Plant use Plant Variety Protection Act of 1970 plantar Plant-pesticide Plant-use electricity Next 5 Terms: Plasma Current Plasma TV Plasmid Plastic limit Plastic soil About the author Mark McCracken Author: Mark McCracken is a corporate trainer and author living in Higashi Osaka, Japan. He is the author of thousands of online articles as well as the Business English textbook, "25 Business Skills in English". Copyright © 2005-2011 by Mark McCracken, All Rights Reserved. TeachMeFinance.com is an informational website, and should not be used as a substitute for professional medical, legal or financial advice. Information presented at TeachMeFinance.com is provided on an "AS-IS" basis. Please read the disclaimer for details.