Water polo is a team water sport. It is the oldest continuous Olympic team sport. The playing team consists of six field players and one goalkeeper with a maximum of six substitutes. The winner of the game is the team that scores more goals. Gameplay involves swimming‚ players passing the ball while being defended by opponents‚ and scoring by throwing into a net defended by a goalie. Water polo‚ therefore‚ has strong similarities to the land-based game of team handball. The frequency of ’man-up’
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Fluoride In Water What? Fluoride in water! I though fluoride is where you put in toothpaste to brighten your teeth. That’s what I used to think. After reading and researching of water fluoridation‚ is a shocker. Water fluoridation is the process of putting appropriate amount of fluoride in water to control tooth decay. Since the 40’s‚ researcher have claimed that by adding moderate amount of fluoride to the water supply can help toughen the enamel of teeth and preventing tooth decay. By drinking
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The Solution is in the Tips of our Hands. "We think this water may one day be lost to us forever‚" a phrase said by Mohanbhai G. Patel‚ a hopeless well owner from India mentioned on the essay Water Pressure‚ presented in the book Green. This essay portrays a great understanding of how humans can change the water scarcity problem in remote places‚ such as villages in India and Africa‚ by just spreading their knowledge and showing methods that will decrease the effect of this ceaseless issue.
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making my clothes stick to my body. I took a shaky step closer to the edge. The lightening cut through the sky‚ illuminating the thrashing waves beneath me. Thunder boomed a few seconds later‚ making me blink rapidly. I could feel the salty water spraying at me as the waves crashed against the cliffs edge. My heart was beating hard against my chest‚ making it hard to hear anything. All I could hear was the pulsing of blood behind my ears. Why are you doing this? A voice in my head asked
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How water is purified in water treatment plants Pre-treatment 1. Pumping and containment – The majority of water must be pumped from its source or directed into pipes or holding tanks. To avoid adding contaminants to the water‚ this physical infrastructure must be made from appropriate materials and constructed so that accidental contamination does not occur. 2. Screening (see also screen filter) – The first step in purifying surface water is to remove large debris such as sticks‚ leaves
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Lab Report: Hard Water Purpose: The purpose of this lab is to determine whether a liquid is hard water or not. Background: Hard water is the water that has a high amount of mineral in it‚ usually Ca2+ and Mg+. These cations enter the source of water by leaching from minerals within a wet underground layer of water- bearing rock‚ or an aquifer. According to the WHO‚ hard water is not harmful to human’s health but it’s a serious problem in the water industry. Household plumbing and appliances
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Water is the most important substance in our evolution and our daily lives. Without water‚ life as we know it would not have been possible. This essay will examine the water molecule in order to ascertain how it brought about Earth’s successful ecosystem and how important it is to us today. Each water molecule consists of one oxygen atom and two hydrogen atoms. The oxygen atom bears a slight electronegative charge while hydrogen possesses a more positive one. Because opposite charges attract‚ the
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First‚ the matting was placed on the four slides‚ cover-slips as well as the container of blood on top. Blood containers are in dropper bottles. Number each slide with a wax pencil. A drop of blood was placed on a slide and numbered it slide #1. Slide #1: 1. With the wooden applicator stick‚ dip the end into the blood and place a tiny drop onto slide #1 and put cover slip over it. Slide#2 1. Place 1 drop of 0.9% NaCl with the drop of blood (use the filter paper to absorb excess liquid). 2.
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Water has polarity. Polarity is the uneven distribution of charge. Water has cohesion‚ adhesion‚ and heat capacity. Cohesion is the attraction between molecules of the same substances. Adhesion is the force of attraction between molecules of a different substances. Heat capacity is the amount of heat it takes to raise temperature of a substance. The experiment displayed shows water can have adhesion and cohesion. The hypothesis of this experiment is if a nonpolar substance is added to water
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Water is the most important substance in our evolution and our daily lives. Without water‚ life as we know it would not have been possible. This essay will examine the water molecule in order to ascertain how it brought about Earth ’s thriving ecosystem and how important it is to us today. Each water molecule consists of one oxygen atom and two hydrogen atoms. The oxygen atom (or the apex of the water molecule) bears a slight electronegative charge while hydrogen possesses a more positive
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