Glencoe Science Level Green

Chapter 21: Substances, Mixtures, and Solubility

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Topic: Desalination

Visit these sites to learn more about how salt is removed from salt water to provide drinking water. Use the information to complete the activity in your book.

Seawater Desalination

( http://www.coastal.ca.gov/desalrpt/dsynops.html )
Intro - Turning Seawater into Drinking Water

( http://cape.uwaterloo.ca/che100projects/sea/intro.html )
Desalination

( http://en.wikipedia.org/wiki/Desalination_plant )
Desalination of Groundwater

( http://water.usgs.gov/pubs/fs/fs075-03/ )
Water Desalination International

( http://www.waterdesalination.com/introduction.htm )
Desalinization

( http://library.thinkquest.org/26026/Science/desalinization.html )

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Topic: Calcium Hydroxide

Visit these sites to learn more about uses for calcium hydroxide. Use the information to complete the activity in your book.

Calcium Hydroxide - Wikipedia

( http://en.wikipedia.org/wiki/Calcium_hydroxide )
Calcium Hydroxide

( http://www.infoplease.com/ce6/sci/A0809855.html )
Lime - Calcium Oxide

( http://scifun.chem.wisc.edu/chemweek/Lime/lime.html )
CHEMINFO: Calcium Hydroxide

( http://www.intox.org/databank/documents/chemical/calchydr/cie10.htm )
The Lime Cycle

( http://www.limeindustries.com.au/thelime.htm )

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Topic: Indicators

Visit these sites to learn more about the types of pH indicators. Use the information to complete the activity in your book.

Using Plants as pH Indicators

( http://www.fed.cuhk.edu.hk/~johnson/extra/indicators.htm )
Home and Garden pH Indicators

( http://chemistry.about.com/cs/acidsandbases/a/aa060703a.htm )
What Is pH?

( http://soils.usda.gov/sqi/files/indicate.pdf )
Making a Natural pH Indicator

( http://www.epa.gov/airmarkets/acidrain/experiments/exp3.html )
Water to Wine: The Molecular Basis for Indicator Color Change

( http://marie.frostburg.edu/chem/senese/101/features/water2wine.shtml )

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Visit these sites for more information about elements in seawater.

Drink a Cup of Sea Water

( http://ga.water.usgs.gov/edu/drinkseawater.html )
A Fresh Look at Element Distribution in the North Pacific

( http://www.agu.org/eos_elec/97025e.html )
Mean Ocean Concentration

( http://www.mbari.org/chemsensor/summary.html )
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