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The process is called convection. The Earth's surface gets heated by the sun through a process called radiation. O.K. differences in air pressure are generally caused by the unequal heating of the earth. The equator recieves more direct sol...
http://wiki.answers.com/Q/If_air_is_heated_by_the_earth...
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Let us imagine you have a slice of white bread. If you put in water, it will float. Now take another slice of white bread and SQUEEZE it into a tiny little dough ball. Put that ball in water and it sinks. It is the same amount of bread - it ways the same - but ... NEWTON is an electronic community for Science, ... Back to Physics...
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www.newton.dep.anl.gov/askasci/phy99/phy99253.htm
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A less dense gas is accelerated faster and hence it rises in comparison with the surrounding cold air. For cold air the pressure neatly cancels the force due to gravity which gives us the stable atmosphere. As this packet of hot air rises, it expands to maintain pressure equilibrium with its surroundings and cools down.
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www.newton.dep.anl.gov/askasci/phy99/phy99068.htm
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It can be used to explain why hot air rises and how wind is produced by heat energy from the Sun. Instructions: �� To avoid spills, check how much hot water you will need by submerging the bottle and mark the jar before the demonstration. ... When the bottle is heated, the air molecules inside start moving faster.
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www.abc.net.au/science/surfingscientist/pdf/teachdemo_8...
www.abc.net.au/science/surfingscientist/pdf/teachdemo_8.pdf
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A system that stays cool only because of all of the air leaks that were accidentally designed into the chassis. How to predict the performance of a cooling system that is literally full of holes. Lesson: Hand calculation of natural convection flow is nearly impossible to get right.
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catalog.asme.org/books/PrintBook/Hot_Air_Rises_Heat_Sin...
catalog.asme.org/books/PrintBook/Hot_Air_Rises_Heat_Sinks.cfm
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Discussion: Heat travels by convection, which means warm air rises. Heating of the earth is responsible for the motions and movements of the air in the atmosphere. Air like most other substances, expands when heated and contracts when cooled. ... Reflect on "Cloud Formation" experiment to explain how Air Rises. Discussion:
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www.driddick.com/unit/science%20unit/8.39%20Csci3.html
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In order to continue explaining air masses I must first explain density and pressure. Density is a measurement of how close together the air molecules are, or, put another way, ... If some of it were to be heated up to be warmer than the surrounding air, ... And yes, I did just spend six paragraphs explaining that hot air rises.
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airplanepilot.blogspot.com/2007/03/hot-air-rises.html
airplanepilot.blogspot.com/2007/03/hot-air-rises.html
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3......Student is able to explain that warm air rises and that warm air causes movement. ... 2......Student is able to explain that energy rises from the heated light.
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wings.avkids.com/Curriculums/Atmosphere/up_draft.html
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