Introduction

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Introduction
Materials and method
Discussion
Conclusion
Appendix

Background Information

* Water is a molecule that consists of two hydrogen atoms and one oxygen atom. When these atoms are heated to a high temperature, they join to form water. The scientific way to write this molecule is "H2O."(City of phoenix, 2008).

* Every human being beings's body is made up of many bones. All these bones make up their skeleton. Like the body, water is made up of a skeleton of water molecules. (NYU,n.d). Water is one of the most important needs of living things. People need water to drink, to wash their hands, to cook, to water plants and many other things. Without water, the plants would die and people and animals would go thirsty.

* According to City of Phoenix, 2008, water comes in three forms that people see every day: It can be vapor - as the steam from cooking, or unseen as humidity in the air; it can be liquid - as a beverage or a lake, stream, river or ocean; it can be solid - as ice.

* People tend to see water everyday and still they refuse to acknowledge the facts that bacteria surround everything on earth. Water is an important source to human, but can very dangerous when bacteria is present. The presence of bacteria and pathogenic (disease-causing) organisms is a concern when considering the safety of drinking water. Pathogenic organisms can cause intestinal infections, dysentery, hepatitis, typhoid fever, cholera, and other illnesses.

* According to biology-online.org, n.d., bacteria are microscopic, single-celled organisms that possess a prokaryotic type of cell structure, which means their cells are non compartmentalized, and their DNA (usually circular) can be found throughout the cytoplasm rather than within a membrane-bound nucleus. They reproduce by fission or by forming spores. According to UCMP, n.d., bacteria was discovered by the scientist Antony Van Leeuwenhoek. They can practically live everywhere. They can inhabit all kinds of environment, such as in soil, acidic hot springs, radioactive waste, seawater, deep in the Earth's crust, in stratosphere, and even in the bodies of other organisms. Bacteria belong to Kingdom Monera, together with Cyan bacteria (blue-green algae), which are also prokaryotic. Bacteria may be classified based on their shape: spherical (cocci), rod-like (bacilli), spiral (spirochetes), or comma-shaped (vibrios).

Hypothesis/ Hypothesis Support
* After researching about the many effects that bacteria has on water, the researchers decided to find the effect that different types of water has on the amount on bacteria produce in the environment. The researchers have a main goal and it is to be healthy and help others to be healthy as well. So the researchers thought that after conducting this experiment which will help them to find out which types of water has more bacteria or less, it will help others when choosing which type of water is more appropriate to use. The researchers hypothesize that if a water source is located outdoor in an open environment such as a lake, then it will contain more bacteria than a water source that is enclose inside a bottle. According to HealthGoods, LLC (1998-2007) Human and animal wastes are a primary source of bacteria in water. These sources of bacterial contamination include runoff from, pastures, dog runs, and other land areas where animal wastes are deposited. Bacteria from these sources can enter wells that are either open at the land surface, or do not have water-tight casings or caps, or do not have a grout seal in the annular space (the space between the wall of the drilled well and the outside of the well casing). Bacterial contamination cannot be detected by sight, smell or taste. It has to be tested, and that is precisely that reason these young bright researchers took upon this project.

** In addition, All plants and animals, including people, have to drink water. If they don't drink enough good, clean water, they will get sick, or can even die. But our water isn't always clean enough. Sometimes it has germs and chemicals in it, especially bacteria. Microorganisms are the perpetrators of many health effects caused by contaminated drinking water. For example, the bacteria Legionella can cause legionellosis, a lung disease and the cryptosporidium parasite is the cause of gastrointestinal diseases.(drinking water, n.d.). It is said that all types of water, even bottled water has bacteria. According to WebMD, LLC, 2008, researchers say people with weakened immune systems who are hospitalized are often given bottled mineral water under the assumption that it is not contaminated and therefore safer to drink than tap water. But the results show that there is still a risk of infection from common illness-causing bacteria, such as legionella, from bottled mineral water. Infection with legionella bacteria can lead to a serious, pneumonia-like condition called Legionnaires' disease.

*** According to WCA infoNET Community Directory,2005,bbacteria are commonly found in soil, on our bodies, on leaf material and in water. Pathogenic bacteria can cause diseases such as typhoid, dysentery and cholera. If these bacteria are in drinking water, they can cause serious health problems. In one instance, in Missouri, four people died and 243 people became seriously ill from drinking water with a dangerous strain of Escherichia coli While surface waters commonly support bacteria, most groundwater supplies do not. This is because the conditions for bacterial growth (food, oxygen, warm temperatures and favorable pH) are not often found in groundwater. Yet, many well water samples still show bacteria are present.






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2008. [Turenne Olestine; Cila Dana; Cerina Spence; Marloude Pierre- Louis].