URGENT: salinity of water!

littletapper247 · Post by **littletapper247** » Sun Oct 09, 2005 12:57 pm

If anybody is doing the science project : How does the salinity of water affect the time it takes to evaporate please notify me and help

lots of love . emily

poloplaya15 · Post by **poloplaya15** » Sun Oct 09, 2005 4:17 pm

Emily,

This is an interesting topic. Is this project in relation to the salinity of the oceans?
If so, this website might help: http://www.bigelow.org/aquarius/educati ... ol_ev.html
As you probably know, as evaporation occurs, the salinity of the water will increase. If you are planning to evaporate the water fully, then time may be a factor. Also, measuring salinity could be difficult, here are some suggestions to go about this:

Salinity can be measured in a number of ways:
*measuring the density of the water. As water becomes saltier its weight increases although its volumes remains essentially the same,
*measuring light refraction in the water. The more dissolved solids in seawater, the slower light travels through it,
*measuring the concentration of chlorite ions which is directly related to the salinity
*measuring conductivity. The higher the salinity, (represented by an increase in the concentration of charged particles) the higher the electrical conductivity of the water

I hope this helps, if you have any questions feel free to post.

Melissa
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