POST LAB QUESTIONS Develop hypotheses on the ability of oil, vinegar, and laundry detergent to contaminate groundwater. Oil hypothesis = Oil will not contaminate or change the amount of water filter. Vinegar hypothesis = Vinegar will contaminate through the soil allowing the water to filer through. Laundry detergent hypothesis = Laundry detergent will contaminate the soil by allowing the water to pass through. Based on the results of your experiment, would you reject or accept each hypothesis that you produced in question 1?
This product is pitched as an antiseptic mouth rinse that kills germs caused by plaque, gingivitis, and bad breath with the deal sealer approved by the American Dental Association. Active ingredients Eucalyptol 0.092%, Menthol 0.042%, Methyl salicylate 0.060%, and Thymol 0.064% these ingredients purpose anti-gingivitis / anti-plaque. Inactive ingredients water, alcohol 21.6%, sorbitol solution, flavor, poloxamer 407, benzoic acid, sodium benzoate, FD&C green no.3. Listerine Cool Mint a product distributed by Johnson & Johnson Healthcare Products. This product is pitched as an antiseptic mouth rinse that kills germs caused by gingivitis, plaque, and bad breath and this product is also approved by the American Dental Association.
With a rod (spreader) that was dip in ethanol and then place under the busen burner in order to neutralize it; we spread the bacteria on every surface area of the petri dish. We wanted approximately 10 minutes for the bacteria to dry off, before applying the antibiotics. The three antibiotics were place in the center of the quadrants and a control was also place in the fourth quadrants carefully. Once this was done we close the petri dish and sealed it with parafilm for more protection for the environment of the bacteria. The two petri dish that contained E. coli and S. Marscensen were placed upside down and allowed the growth of the bacteria to interact with the antibiotics for a week.
I am having some difficulties as my plant does not look health but rosemary does regenerate. I began my experiment with the tools such as, snipers, bottled and tap water, and vinegar. Then I would need and began to detach my rosemary stems. Thirdly, I recorded my observations in the chart below and place the near my sliding glass door. [pic] Crucial instruments needed for experiment References What is Acid Rain?
6/28/2012 The 1st lab procedure performed was the gram stain. Previously, before starting the gram stain I prepared a bacterial smear on a glass slide and used the heat fixing method which was done to help the bacteria cells adhere to the glass, kill them, and also helps make the cells easier to stain by coagulating the cells proteins. The gram stain test helped me identify rather my bacterium would be a negative or positive and determined the microscopic morphology (shape, and arrangement) of my bacterium as well. The test
What is the function of the iodine solution in the Gram stain? If it were omitted, how would staining results be affected? To fix the dye on the slide in order to form insoluble substance, and if it is ommitted then, when flushed with water and the alcohol decolorized, the bacteria will come off. 2. What is the purpose of the alcohol solution in the Gram stain?
Recycling of phosphorus is environmentally important because absorbed nutrient becomes available for plants in the form of fertilizer and the water quality becomes better for people’s use (Sigee, 2005). Before nutrients, especially phosphate will be removed from wastewater, sewage will go through other stages of treatment. The first step is primary treatment of sewage, where large solid materials (rags, wood, fecal material), settle able solids and pathogens are removed. The secondary treatment process aims to reduce organic material and heterotrophic bacteria that utilize the organic compound for growth and energy. And the last step is tertiary treatment, where all organic ions, particularly ammonium, nitrate, and phosphate are removed (Abdel-Raouf et al., 2012; de-Bashan & Bashan, 2004).
Therefore, they need to overcome them by using some male skincare materials. By using facial exfoliator and moisturizer will help to take out dead skin and remove your skin feeling silky (Ouch.com,2009).In addition, use a quality shaving gel to improve your skin while shaving(Ouch.com,2009).We recommend you to ask dermatologist for more information before using skincare products to make sure they are suitable for your skin. Next, keep your teeth clean such as floss it after you have done your meal. This can prevent from stained teeth and bad breath. To make sure you avoid from this disgusting appearance, use an antiseptic and anti-plaque for mouthwash plus use the dental floss to slip between your teeth (Ouch.com).The next step is to keep your hair healthy such as using suitable shampoo and conditioner (Ouch.com).But first, you