power an iPod with a Gatorade-soaked onion doesn’t work. Many Internet users today have made the same discovery after viewing the video in question‚ produced by the Web site HouseholdHacker.com. First‚ let’s examine the idea of powering any electronic device with a fruit or vegetable. The concept is believable because you can create a battery with a few potatoes. This experiment is a science class favorite because it helps demonstrate how the galvanic cells that make up a car battery work.
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Investigation of Factors Affect Osmosis in Potatoes Aim The aim of the following experiment was to investigate the effect of varying the concentration of sucrose solution on osmosis in a potato. Preliminary Experiments One preliminary experiment was done before the main experiment. From the preliminary‚ we were trying to find out how osmosis actually occurred in potatoes‚ and gave us a vague idea on what the main experiment would be like. This preliminary will aid my prediction
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demonstrate the principle of simple diffusion and understand how to make % solutions. Exercise 2 demonstrated the principle of osmosis: observing the movement of water by osmosis from an area of lower concentration of a solute to an area of higher concentration of a solute. Materials and Method: Refer to pages 47-51 of Bio 203L Lab Manual. Results/ Discussion: The effect of the chloride ion on its rate of diffusion in agar means it will diffuse faster because it is more concentrated. We graphed
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Acne Prone Skin Esthetics 2013 Ever since I was about 11‚ I’ve always had problems with acne. It used to be quite severe but the older I get the better it seems to be. I’ve tried probably hundreds of different products out there for acne and oily skin‚ and I probably have over 100 bottles of half used products. It sometimes confuses me why there are so many different products out there‚ but they all work differently
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Sabrina Waters 2206580 EN120-English Composition I Assignment 06-06 May 21‚ 2013 Dark Skin vs. Light Skin: Does Prejudice Exist? Since the days of slaver‚ color has been used as a tool of separation and preferential treatment against African Americans. It was a known fact that the lighter skin slaves were favored over the darker skin slaves. The lighter skin slaves were given work in the main house where they helped raise the master’s children‚ ate better‚ and dressed better; where
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infectious contagious contaminations of the top layer of the skin‚ scalp‚ and nails. There is a typical misconception identified with Ringworm. Because of its name numerous trusts that it is some sort of illness that is brought on by some sort of worm. In any case‚ it’s really not. Ringworm‚ a typical skin contamination is brought about by parasites that influence the top layer of our skin. It is called ringworm on the grounds that the bothersome‚ red rash has
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fatty acids. Phospholipids receive and transmit signals across the cell membrane and act as a store room for energy. The main role of phospholipids is that they can form lipid bilayers. It is an amphipathic molecule. The head which is hydrophilic contains a group of phosphate‚ a diglyceride and a simple molecule e.g. choline. The tail is hydrophobic and is made up of fatty acids. Phospholipids receive and transmit signals across the cell membrane and act as a store room for energy. Fatty acids Fatty
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Source 1: The Skin Cancer Foundation website tries to inform people on how to avoid certain types of sunscreen and has facts on skin cancer you and how many brands don’t actually work. Some of the facts are that “About 90 percent of all skin cancers are associated with exposure to the sun’s harmful radiation.” The website also states that “applying one ounce to the entire body 30 minutes prior to going outside‚ and reapplying every two hours outdoors or immediately after swimming or sweating heavily”
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PLANT CELL Introduction Plant cell is the basic unit of structure and function in nearly all plants. The range of specialization and the character of association of plant cells are very wide. In the simplest plant forms a single cell constitutes a whole organism and carries out all the life functions. In just slightly more complex forms‚ cells are associated structurally‚ but each cell appears to carry out the fundamental life functions‚ although certain ones may be specialized
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Osmosis Lab Report Hypothesis: Osmosis will occur when there is an uneven distribution of solute in a solvent. The higher the solute in solvent‚ then there will be a higher rate of osmosis through the diffusion gradient forming a hypertonic or hypotonic solution. Solvent with equal or no solute forms an isotonic solution. Materials: Distilled water‚ sucrose‚ dialysis tubing‚ string‚ 250 ml beaker. Procedure: To demonstrate and isotonic solution we needed 3 inches of dialysis tubing. We
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