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WATER QUALITY AND CONTINMINANTION

Introduction

I. Body Paragraph #1 – Background~ Water quality is decided by assessing three classes of attributes: biological, chemical, and physical. There are criteria of water quality set for each of these three categories of properties. The standards for drinking water are developed by the Environmental Protection Agency (EPA), World Health Organization (WHO) etc. All municipal (public) water supplies must be measured against these standards. Testing how ground water is affected by different contaminants was the bases of the experiment.

II. Body Paragraph #2 – Objective~ in this lab we explored how contaminates affect the water supply. The main objective for this experiment is to see how the contaminants will affect the ground water.

III. Body Paragraph #3 – Hypotheses~ a. Oil hypothesis = I hypothesize that the oil with settling on top of the water. b. Vinegar hypothesis = I hypothesize that water will not change in color, but it will smell like vinegar. c. Laundry detergent hypothesis = I hypothesize that the detergent will make the water smell good and change colors. I hypothesize that carbon is the best filtration technique to remove contaminants from water. I hypothesize that bottle water is better than tap water.

Materials and Methods

Body Paragraph # 1: In the first experiment, Effects of Groundwater Contamination

I used the following materials: (8) 250 ml Beakers|Permanent marker|3 Wooden stir sticks|100

ml Graduated cylinder|10 ml Vegetable oil|10 ml Vinegar|10 ml|Liquid laundry detergent|100 ml

Beaker|240 ml Soil|Funnel|Cheesecloth|Scissors|Water.

With a marker the eight 250mL beakers were labeled number one through eight. Putting

five through eight to the side, fill with beakers one through four with 100mL of water using the

100mL graduated cylinder to help measure the water. In beaker number two 10mL of vegetable

oil was put in and with a wooded stir

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