Monday, February 14, 2011

Water Purification

You will be given a sample of water that needs purified for drinking on Tuesday.  This water must be cleaned using at least a 5 step process, and then presented to me in a clean pop bottle that is 20 oz in size.

You must bring your own materials for filtering....they will not be supplied, but are easily available at Walmart or other locations in Manchester.
==Create a poster that explains your process.

List at least 3 resources.

Groups are individual or groups of TWO.   Did you notice the size?  TWO.

==Questions to think about:

1.  How long per day would people need to devote to purification?   How would this compare to your own life?
2.  When should mechanical straining be done?  Why?
3.  After adding iodine or chlorine products, the water should stand for at least 30 minutes before drinking.   Why?
4.  What would the temperature of the water have on the effectiveness of the treatment in killing microorganisms?
5.  In our own culture, we often desire infusions of plant matter (spices, teas, coffees).   Why is this not the case for the water we were purifying?
6.  Finally, do you think a treatment  lagoon or septic system with a leach field, like those found here Iowa, will affect water quality in a positive, neutral, or negative way.  Explain your reasoning.

You can do this!

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