Group+Karla.Mallory.Meghan.Sam

Karla, Mallory,Sam,Meghan __
 * __Lab Fest 2010

Lab One: Mason Jar (Karla)**



1 Mason Jar 1 cup of soil 1 teaspoon of fabric softener 1 Water

We put 1 cup of soil in the Mason jar along with 1 teaspoon of fabric softener and 1 cup of water. Within the first twenty minutes we saw the separation of the sediment. We let it sit overnight and the next day it was about 5.5 cm of water 3cm of fabric softener and the rest water.In conclusion this determines the densities of the different sediments. ** Lab 2: Natural Filtration (Karla )**

Materials 5 beakers 5 soda bottles lemon juice soil food coloring water vinegar

The purpose of this lab is to see which filter worked the fastest. Each soda bottle was about 3/4 full with soil. The bottoms were cut off. we filled up the beakers about 2/3 full with tap water. we added 15mL of lemon juice to one beaker. 15mL os soil to another beaker. 15 drops of food coloring to another beaker. Water was are control. We hadded 15 mL of vinegar to the last beaker. We timed them all. The water worked the fastest with a time of 2:43. it was a clear color to start and ended up being a brown color to finish. The lemon juice was the second fastest with a time of 3:43. It was a cloudy and light color yellow. After the filitrationwas done it was somewhat cloudier. The food coloring had a time of 5:19 starting with a clear orange and ending like a cloudy green color. The vinegar was a yelloish color turing brown like chocolate milk with a time of 6:51. The slowest filtartion time was the soil with a time of 7:28. The soil sat at the bottomof the eater, and after it was a very light brown.

**Lab 3: Permeability and Porosity (Karla)**

Materials Potting soil Gauze Rubber Bands 2 2L bottles with the cap 2 Beakers Ring Stand

The goal of this lab was to determine the porosity and permeability of different soil types. In this lab we took a bottle and we attached a peace of gauze and put a rubberband and the cap over it so that a little bit of the liquid was coming out. It was very important to get this right so that we could calculate the correct porosity and permeability. We added potting soil in the bottles. Then we filed up the bottles until the water was reaching the surface of the soil. The porosity of our sample 4 soil was 300 mL. And for our sample 2 soil was also 300 mL.We add the rest of the water to the samples.We then started the stopwatch until the dripping from the bottle dropped one drop for every ten seconds. Our sample 4 soil recovered 250mL of water with a time of 12:34. Our sample 2 soil recovered 275mL with a time of 19:20.


 * Lab 4: Water Testing (Karla)**

Materials 3 different samples of water Dixie cups

The purpose of this lab is to examine the quality of different types of waters by tasting them. Each person in our group sampled each of the water and we each rated them. Sample one had a clear color the odor was average the taste was average. Sample 2 had a clear color and average taste an average odor. Sample 3 were the same as the other ones. Our group had all the same thoughts. We think that the dixie cups smell played a role because the water smelled like paper. There were no differences in the water just that the taste varies.

Lab 5: N, P, K and PH of Soil (Karla)