Green+Plague+-+Lab+Group

Lab Group Members: Jake, Jeff, Shalaia, and Jessica

In this lab we filled paper cups with three samples of unknown waters and subjected them to a number of tests. The results of these tests tended to coincide with the results of other groups. All three waters had much the same colour, and exactly the same odour. It is the taste of the different waters that reveals substantial differences between them. Both the spring and distilled water had a bitter taste however, the distilled water was slightly worse taste than that of the spring water. It was determined that the purified water had both the best taste and lowest risk to the drinker, due to the regulations surrounding the sale of purified water in the United States. (1-5) || Taste (1-5) || Total Score || (spring) || 4 || 5 || 2.5 || 11.5 || (distilled) || 4 || 5 || 2 || 11 || (purified) || 5 || 5 || 4 || 14 ||
 * Water Quality (Taste-Testing)** //Jeffrey Koudelka//
 * Sample Tested || Colour (1-5) || Odour
 * A
 * B
 * C

**Core Sampling / Soil Sifting- Jake Rice**

For this lab, our group had to take a sample of the soil ouside the school with a metal tube. We pressed the tube into the groundand the removed it to study the soil. Below is a digital representation of the sample we took. After core sampling, we did a soil sifting lab. We took two scoops of soil and put it in a sifter. Each group member took turns sifting and the result ended with the larger dirt clumps on the top level, and, going down to the fourth level, smaller and smaller sizes of soil.

In this lab, we tested two different water samples for pollutants such as chlorine, copper, and phosphorous. We did this by using different chemicals that indicated the presence of different pollutants. Results are shown in the table below.
 * __Water Pollution Testing Station__ __-__ ** __Jessica Onion__
 * || Water Sample 1 ||  || Water Sample 3 ||   ||
 * Pollutant || Reaction Observed || +/- || Reaction Observed || +/- ||
 * Ammonia Nitrogen || none || - || none || - ||
 * pH || green || 8 || green || 8 ||
 * Chlorine || none || - || none || - ||
 * Chromium || none || - || none || - ||
 * Copper || none || - || orange || + ||
 * Iron || none || - || red || + ||
 * Nitrate (Nitrogen) || none || - || none || - ||
 * Phosphorous || none || - || none || - ||
 * Silica || none || - || none || - ||
 * Sulfide || none || - || none || - ||

__** Mason Jar (Soil Types)- Shalaia ** __ In this lab we used 2 cups of soil, 1 teaspoon of fabric softener,and water. We poured these ingredients into a mason jar to see how the different layers would react. In our group the mason jar separated into three different layers: soil, fabric softener, and water. Our soil turned out to be silt loam.