...Water Quality and Contamination Lab Report Kathryn Thomas SCI207: Dependence of Man on the Environment Instructor Joseph Fiedor October 6, 2014 Water Quality and Contamination Lab Report Abstract The water filtration process was examined using oil, vinegar, and detergent to show how well the process works. The watercolor, consistency, and smell would change allowing the difference to be seen. Different kinds of water were tested using test chemical strips to evaluate the chemicals within them. The reason was to show that bottled water was not better for human consumption than tap water. Contaminants can be carried from one point to another and can affect human health. Water quality is very important and knowledge gained in our communities can make a difference. Introduction Water quality research is important because it helps to protect and restore the quality of the Nation’s water. Certain standards help to identify problems caused by incorrectly treating wastewater, sediment, fertilizers, and chemical from agricultural areas. Standards are put in place to achieve and preserve protective water quality conditions. (EPA, 2012). Water quality affects ecological processes such as good river health, vegetation, wetlands, and birdlife. Our water resources have major environmental, social, and economic values. If the water quality is not maintained, it will affect more than the environment; it will affect commercial and recreational values as well. (NSW, 2012). The main...
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...Final Lab Report James Dillon SCI 207: Dependence of Man on the Environment Instructor: Jessica Bostock February 20, 2016 Final Lab Report Abstract The experiments conducted for this lab report focused on water contamination and filtration. Experiment 1 was effects of groundwater contamination. Oil, vinegar, and laundry detergent were added to clean water with no means of filtration. The clean water was found to be contaminated. A filtration system consisting of cheesecloth and 60 ml of soil was created and the contaminated samples were filtered through it. The soil and cheese cloth did not affectively filter the contaminants. Experiment 2 focused on water treatment and a filtration system using cheesecloth, sand, activated charcoal, alum, and gravel was created. The contaminated water sample was created by mixing soil and water together. After the contaminated water was put through the filtration system and a few drops of bleach were added you could see that much of the sediment was filtered out, but an overwhelming bleach smell remained. The third experiment was to determine drinking water quality. Samples of Dasani and Fiji bottled water were compared to my local tap water. Test strips were used to determine each samples ammonia, chloride, alkalinity, chlorine, hardness, phosphate, and iron levels. The results were that the Dasani water was cleaner overall and that the Fiji water and...
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...! Lab Report: Scientific Method Your Name: ___________Jose Sebastian Flores Vera______________________ Purpose of this Lab What is the goal of this lab? What question is it trying to answer, or what problem is it trying to explain? This lab is for the application and understanding of the scientific method. The propose of this lab helps students to learn the metric system, its units, and the conversion from the English system to the metric system. Hypothesis After reading the lab instructions - but before starting the lab - record your best “educated guess” about what will happen in the experiment. What hypothesis can you generate about the effect of adding salt to water? Well, the addition of salt to tap water raises the boiling point of the water in a steady and constant way. Because the addition of the salt increases the number of atoms, then it will take a higher temperature to reach the boiling point. Experimental Design List the materials used in this lab, and the procedure you followed. Materials: 1. Tablespoon 2. Sharpie 3. Thermometer 4. Measuring cup 5. Kitchen stove 6. Several small pots 7. Table salt 8. Tap water Procedure (list steps in the order in which you performed them): 1. Pour 2 measured cups of tap water in the pot 2. Heat it up, record the boiling point with the thermometer. 3. Discard the water. 4. Pour 2 measured cups of tap water in the pot. 5. Add a tablespoon of salt. 6. Heat it up, record the boiling point with the...
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...(Rough draft) Final Lab Report Angela Blake SCI 207: Dependence of man on the environment Instructor: Bo Sosnicki Date: November 23, 2015 Introduction Body Paragraph #1 - Background: In this lab we will examine the different pollutants of water and examine contaminates of it as well. Body Paragraph # 2 - Objective: The lab was performed so we could investigate the effects of common pollutants on groundwater as well as mimic the filtration process utilized by wastewater treatment facilities. Body Paragraph # 3 - Hypothesis: Experiment 1 Hypothesis = I think that the bleach will filtrate and remove the contaminants because bleach removes contaminants. Experiment 2 Hypothesis = I think the tap water will contain the most chemical components and the Fiji will contain the least amount of chemical components. Experiment 3 Hypothesis = I feel like the rye grass will contain the highest biodiversity. Materials and Methods Experiment 1: Effects of Groundwater Contamination The material that were needed for the first experiment were, Scissors to open the package contents that we used for this experiment. (8) 250 mL Beakers numbered 1-8 with our permanent marker to distribute water in for testing. We filled Beakers 1 - 4 with 100 mL of water using our 100 mL graduated cylinder. We then used 10 mL Vegetable oil for Beaker 2, 10 mL Vinegar for Beaker 3 and 10 mL Liquid laundry detergent for Beaker 4 all mixed thoroughly with our 3 wooden stir sticks. Beakers 5-8 were used...
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...Please note that this experiment takes several days to complete, so don't wait until the last minute to start!** I. Background: Osmosis is the diffusion of water molecules through a semi-permeable membrane. This is how water gets into and out of our cells. In this lab we will investigate the effects of different solutions on the water content of an egg. An egg will serve as our model of a cell. A. Remember, when comparing 2 solutions, the one with the greatest amount of stuff dissolved in it is called hypertonic while the one with the lesser amount of stuff dissolved in it is called hypotonic. Please get these terms straight in your mind before you start the experiment. B. Therefore, hypertonic solutions have less percentage of water in them than hypotonic solutions. Water, like everything else, moves from a greater concentration of itself to a lesser concentration of itself. C. In this experiment you will observe the movement of water into and out of an egg. To do this we will remove the minerals from the egg shell leaving only a membrane that is permeable to water. II. Supplies needed: 3 eggs 4 drinking glasses or clear containers Vinegar (about 2 cups) Foil or plastic wrap White Karo syrup (or any brand like it) Distilled water (actually tap water will work too) III. OSMOSIS and DIFFUSION Procedures 1. Place the eggs into a container and cover them with vinegar. Cover the...
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...Final Lab Report (Water Quality and Contamination) Student’s Name Course Name Institution Instructors Name Date of Submission Final Lab Report Abstract Establishing water quality was done by analyzing the chemical, physical and biological characteristics. This process helped determine safe water for human consumption in public in addition to making sure that humans are not affected by chemicals or disease causing organisms. This was done by analyzing 3 water samples which entailed Tap water, Fiji® bottled water and Dasani® bottled water. The goal of this research was to establish the effects of ground water contamination. This research necessitated hypothesizing on the capability of oil, vinegar and laundry detergent to pollute ground water in view of soil as a contributing filter of oil. Arising from the results obtained from the data analysis and observations from the experiments, conclusive evidence about bottled water was deduced and further research consideration is brought to light. Introduction Water quality was established by analyzing various characteristics which entail chemical, physical and biological. There are benchmarks of water quality set for every of these classes of characteristics. The benchmarks for water quality are advanced by (EPA) Environmental Protection Agency (2004) and (WHO) World Health Organization (2011). The quality of water taken in public was determined in the view of these benchmarks. Water quality research is significant due to...
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...Assignment 3: Inspection Report ---ENGG5103_Safety Systems & Risk Analysis Assignment Peng Song SID: 420162043 Hang Yang SID: 420161998 Dan Zhi SID: 430429747 October 31st, 2014 The University of Sydney Faculty of Electrical Information and Engineering 1 Introduction This is a technique report that outlines the findings and recommendations of a safety inspection within the School of AMME. All of potential hazards and other issues performing on a variety of areas in AMME, R.F HALLIDAY LABORATORY and MECHAINICAL TESTING LABORATORY, which may not satisfy the University’s WHS Policy or the NSW WHS legislation, have been listed in the following parts. The recommended solutions and methods that will address these issues to reduce risk as well as decrease the potential hazards based on University’s WHS Policy and NSW WHS Legislation are also included in this technique report. The safety management for school of AMME especially for the R.F HALLIDAY LABORATORY and MECHAINICAL TESTING LABORATORY must obey University’s WHS Policy and NSW WHS Legislation on safe manufacturing and construction. Students’ and all the other operators’ safety and healthy shall be protected during building up the lab. The principle “safety and prevention first” are insisted during inspection. Some of the safety responsible system and equipment safety shall be improved. It is necessary to talk about the potential hazards in mechanical laboratory rooms to protect health and prevent possible...
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...Quality of Water: Tap and Bottled Water Tiffany R. Jones SCI 207: Dependence of Man on the Environment Instructor Leslia Wilson 3/2/2015 Introduction Body Paragraph #1 - Background: The debate of water quality and the effects it has on the public is one that has a lot of weight to it. The advancement of water testing has evolved into one that is of meaning, and is talked about frequently. Efficient testing of the water supply makes way for people to know what they are drinking. According to the Environmental Protection Agency (n.d.), “Climate change can have a variety of impacts on surface water, drinking water, and ground water quality.” In testing the water quality and contamination, the EPA regulates a lot of different ways to get the water clean to get it to become drinkable. According to the Centers for Disease Control (n.d.), “Even though our tap water supplies are considered to be one of the safest in the world, water contamination can still occur.” The occurrence of this is because of places not being regulated and inspected properly. Coming out of the Natural Resources Defense Council (n.d.), “Studies have shown that chemicals called phthalates, which are known to disrupt testosterone and other hormones, can leach into bottled water over time.” The plastic used in that of bottled water tends to have an effect on the human body, and can pose a threat. Body Paragraph # 2 - Objective: There is still a lot to be learned about the difference between tap water and...
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...Environmental Science Table of Contents Lab 2 Water Quality and Contamination 21 Water Quality and Contamination Concepts to Explore • Usable water • Ground water contaminates • Ground water • Water treatment • Surface water • Drinking water quality Figure 1: At any given moment, 97% of the planet’s water is in the oceans. Only a small fraction of the remaining freshwater is usable by humans, underscoring the importance of treating our water supplies with care. Introduction It is no secret that water is one of the most valuable resources on planet Earth. Every plant and animal requires water to survive, not only for drinking, but also for food production, shelter creation and many other necessities. Water has also played a major role in transforming the earth’s surface into the varied topography we see today. While more than 70% of our planet is covered in water, only a small percent of this water is usable freshwater. The other 99% of the water is composed primarily of salt water, with a small percentage being composed of 23 Water Quality and Contamination glaciers. Due to the high costs involved in transforming salt water into freshwater, the Earth’s population survives off the less than 1% of freshwater available. Humans obtain freshwater from either surface water or groundwater. Surface water is the water that collects on the ground as a result of precipitation. The water that does not evaporate back into the...
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...Water Quality and Contamination Lab Report Abstract In the experiments inspected the effects of contaminants on three different waters and how the contaminants of vegetable oil, laundry detergent, and vinegar cooperated. The waters that were interactive were Dasani and Fiji bottled water and tap water. Out of the water added to the vegetable oil, laundry detergent, and vinegar, the water including in the laundry detergent was the most visible change. The water for each experiment in experiment one changed colors and had a smell to it. In experiment two potting soil and alum was used. In experiment three, certain type of test strips were used to be tapped in the different kind of waters. Introduction Water quality research is significant...
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...Inquiry Lab 2/26/2013 Formal Lab Report Materials- • 1x Measuring Cylinder (100ml) • 100ml of water (hot) • 100ml of water (cold/room temperature) • Sugar • 1x Bunsen Burner • 1x Stirring Rod • Safety Goggles Procedure: PART A- ROOM TEMPERATURE WATER • Use a 100ml measuring cylinder to measure out 100ml of tap water. • Put the measured water into a 250ml beaker. • Put 3g of sugar into the room temperature beaker and stir. • Wait until the sugar has dissolved, record the time. • PART B- HOT WATER • Use a 100ml measuring cylinder to measure out 100ml of tap water. • Put the measured water into the other 250ml beaker. • Place the beaker on the gauze mat. • Turn the Bunsen burner on. • Wait until the water has heated up, and then add 3g of sugar to the water and stir. • Wait until the sugar has dissolved, then record how long it took. What kind of difference? Substance Observation Time Hot Water With iodized salt Quickly dissolved 2.8 minutes Room Temperature Water With iodized salt Took forever!!! 30 minutes Stirring Sugar cube Quickly dissolved 5 minutes No Stirring Sugar cube Slowly dissolved 12 minutes Small Pieces Iodized salt Quickly dissolved 3 minutes Large Pieces Ice Cream Salt Slowly dissolved 35 minutes Discussion- I think that having the hot water boiling worked well because it meant that the salt dissolved even faster than it would if the water was not...
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...Topic: Comparative analysis of portable water of Dhaka City Course: ENV 107 Section: 34 Semester: Summer 2016 Prepared by Istiaque Rahman ID: 1611345630 Prepared For Dr. Md. Tajuddin Sikder M. Sc. In Environmental Sciences (JU), Ph. D in Environmental Science (Hokkaido University, Japan) Department of Environmental Science and Management North South University, Dhaka, Bangladesh ABSTRACT Comparative examination of different samples of portable water sources of water in Dhaka city was carried out with a view to assess the different sources of water and determine the water quality of the different sources. The sources of water examined are MUM drinking water, NSU drinking water, NSU tap water, distilled water, Pepsi and waste water. Many parameters were taken in consideration to test the water including physical conditions such as smell, color, turbidity and chemical conditions such as pH, DO, E.coli, TDS and NaCl present in the samples. Finally, a comparative analysis was done to assess the water quality of each samples based on the results from the experiment done. INTRODUCTION Importance of Water: With two thirds of the earth's surface covered by water and the human body consisting of 75 percent...
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...Acis CHEMICAL REACTIONS: ACID-BASE BUFFERS Short Overview Acids and bases represent two of the most common classes of compounds. Many studies have been done on these compounds, and their reactions are very important. Perhaps the most important reaction is the one in which an acid and base are combined, resulting in the formation of water (in aqueous solution) and a salt; this reaction is called neutralization. A buffer solution is a solution that contains both an acid and a salt containing the conjugate base anion in sufficient concentrations so as to maintain a relatively constant pH when either acid or base is added. In this experiment you will prepare a buffer solution and observe its behavior when mixed both with an acid and a base. You will also compare the behavior with that of solutions containing only the acid. Theory In his theory of ionization in the 1880’s, Svante Arrhenius defined acids are substances which form H+ and bases as substances which form OH- in water. He further defined a salt as a substance other than an acid or base which forms ions in aqueous solution. Such substances are thus capable of producing an electric current and are called electrolytes. The amount of electricity produced is directly proportional to the concentration of ions in solution. With regard to electrolytes we have learned previously that strong acids and strong bases ionize completely, and are therefore strong electrolytes because they...
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...4/15/2015 BIO156 Lab 2 Print Lab 2 Biological Molecules and pH Introduction: Connecting Your Learning Biological organisms, like all things, are made up of elements. These elements combine to form organic molecules that create the basis for life. The main elements found in biological organisms include carbon (C), hydrogen (H), phosphorus (P), nitrogen (N), and oxygen (O). This lab describes how these elements form some of the most important molecules in life: carbohydrates, proteins, and fats. Resources and Assignments Multimedia Resources Required Assignments None Lesson 2 Lab 2 From the Lab Kit 7 test tubes Benedict's solution Biuret solution 15 micropipettes 10 pipettes Forceps pH test strips 4 unknown samples https://www.riolearn.org/content/bio/BIO156/BIO156_INTER_0000_v9/labs/lab02.shtml?print 1/21 4/15/2015 BIO156 Lab 2 Measuring spoons (teaspoon and tablespoon) 50 mL beaker Mortar and pestle Glass stirring rod 100 mL graduated cylinder Microscope slide Plastic funnel Test tube tongs Test tube rack 5 plastic cups Goggles Plastic gloves 1 tablespoon baking soda 1 tablespoon chicken soup 4 tablespoons sugar Required Materials 1 tablespoon cornstarch 2 tablespoons unflavored gelatin Student Provided Small saucepan Paper towel Oven glove or mitt Baking tray or aluminum foil (about an 18-inch sheet) Scissors Pencil Dime Microwave (optional) or Stove Permanent marker https://www.riolearn...
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...NSCI 101 Lab Report Form Name: Date: Class Name/Number: NSCI101 Section E801 Semester 1006 Lab Activity Title Input the title of the activity. Statement of the Problem What are the ph levels for items we come into contact with on a daily basis? Hypothesis I expect the 7 sample items to have a wide variety of ph Levels. However, I expect that items we consume as humans will be closer to the neutral range of the ph scale while items we use to clean around the house will be inversely proportional to the items we consume. I believe the household items will be on the extremes, either extremely basic or extremely acidic. Methods Items for experiment were purchased from the Commissary and the Nhetto. They include: 1 x .608 kg head of red Cabbage 2 x Melitta white coffee filters 1 x 12 oz coke 1x Tums antacid 1x Tilex Mold and Mildew Remover 1x 22oz bottle of Clorax bleach 1x bx of Arm and Hammer Baking Soda 1x toilet bowl cleaner 1x hohes C orange juice 750ml of tap water The following steps from the guide was followed (with changes from the instructor): 1. Using a standard cheese grater, I took the entire head of red cabbage and shredded it into small pieces. After shredding was complete the pile of cabbage was placed into a stainless steel cook pot. 2. In order to attempt to get the most accurate results I used my fish tank ph test to identify the ph level of my tap water. The result was my tap water is about a 7.8 (slightly higher than the 7.0 that...
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