28 Dec EAS104 Lab 7 – Water Contamination
EAS104 Lab 7 – Water Contamination
Fall 2019
In this Lab, you will test a variety of water samples. Then you will determine how to treat the water samples to make them safe to drink.
Procedure:
1. Go to http://www.glencoe.com/sites/common_assets/science/virtual_labs/CT04/CT04.html
2. Click the right and left arrows to select a body of water to analyze. 3. Click Test to test the water sample. 4. Look at the results of the water analysis to identify which contaminants exceed the safe
range. 5. Click the tabs to find information on how to treat each contaminant. 6. Enter the contaminant and treatment information in the Table. 7. Click Go To Treatment to go to the treatment screen. 8. Use the information in the Table and click the wheels on the valves to add chemicals or
additives to the water sample. 9. Click the Treatment Switch to start treating the water. The Safe/Unsafe Sign will indicate
whether the water is safe to drink. 10. If the water is safe to drink, use Return to Lab to go to the lab screen and test another
water sample. 11. If the water is unsafe to drink, check your information and treat the water sample again. 12. When you have tested and treated all the water samples, use your completed Table to
complete the Journal questions.
Questions:
1. Fill in the table below based on your water sample results ?(35 points).
Water Sample Acidity pH
Metals Coliform bacteria
Pesticides/ Herbicides
Nitrate Level
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