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en.wikipedia.org/wiki/Water_vapor

When water vapor is used as a lifting gas for use by a thermal airship the water vapor is heated to form steam so that its vapor ...

vsgc.odu.edu/src/Conf09/UnderGrad%20Papers/Ojo%20-%20Paper.pdf

Water vapor, water vapour, also aqueous vapor, is the gas phase of water. There is no difference between the terms gas and vapor, but gas is used commonly to.

www.planet-science.com/categories/under-11s/chemistry-chaos/2012/10/is-water-a-liquid,-solid-gas.aspx

What does water look like? Is water always a liquid? After all, you can run a bath from a tap and drink water from a glass. What about on a hot day? You don't ...

ww2010.atmos.uiuc.edu/(Gh)/guides/mtr/hyd/cond/home.rxml

Condensation is the change of water from its gaseous form (water vapor) into liquid water. Condensation generally occurs in the atmosphere when warm air ...

sg.answers.yahoo.com/question/index?qid=20080420232155AAEPCH0

Water vapor or water vapour (see spelling differences), also aqueous vapor, is the gas phase of water. Water vapor is one state of the water ...

www.weatherquestions.com/What_is_water_vapor.htm

Nov 27, 2010 ... Water vapor is also the Earth's most important greenhouse gas, accounting for about 90% of the Earth's natural greenhouse effect, which helps ...

www.ncdc.noaa.gov/monitoring-references/faq/greenhouse-gases.php?section=watervapor

An introduction to the major greenhouse gases in the earth's atmosphere. The FAQ discusses the relative potency, concentration and expected atmopsheric ...

www.nasa.gov/topics/earth/features/vapor_warming.html

Nov 17, 2008 ... The distribution of atmospheric water vapor, a significant greenhouse gas, varies across the globe. During the summer and fall of 2005, this ...

www.madsci.org/posts/archives/2002-04/1018624412.Ch.r.html

Apr 11, 2002 ... Seriously, in science and engineering "steam" refers to water in its vapor state. You boil liquid water, the resulting vapor is "steam." Having said ...