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Properties of water
Duration:
1 minute and 5 seconds
Country:
Singapore
Language:
English
License:
CC - Attribution Non-commercial No Derivatives
Genre:
Documentary
Producer:
kosasihiskandarsjah
Director:
kosasihiskandarsjah
Views:
209 (97 embedded)
Posted by:
locumele
on Jun 2, 2009
Water is a common compound which can be found in nature in forms of solid, liquid or gas.
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Video Transcription
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Water is surprising stuff!
The most common of compounds, water can be found in Nature as a solid, a liquid or a gas.
Sometimes, all three states exist at the same time.
One of the surprises of water is that it expands when it freezes, making it less dense than liquid water.
Consequently, glass containers of freezing water will burst
and ice will float rather than sink.
Although water has an unusually high boiling point for such a light molecule, 100 degrees Celsius,
water can be seen boiling up through the surface in some hot spots on Earth.
The fact that water remains in the liquid state betwen 0 and 100 degrees Celsius
makes Life possible in a wide range of environments.
Water is probably best known for its dissolving properties.
The attraction of water molecules for itself and other molecules
makes water very efficient at dissolving many ionic and covalent substances.
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