have made a difference in the results. The mood of the person experimenting could possibly alter the results. For example‚ if a person is under stress‚ they may accidentally squeeze too much altering the rate of diffusion. If the water was warmer‚ this may have sped the diffusion process because the molecules would have been moving faster. If the water was freezing‚ this may have slowed the diffusion process because the molecules may have been moving slower. Part B: Title: The effect of salt concentration
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values of potential difference V across the resistor are shown : I(amperes) | 0.5 | 1.0 | 2.0 | 3.0 | 4.0 | V(Volts) | 1.6 | 3.4 | 6.7 | 10.2 | 13.2 | Plot a graph between V and I and use this graph to find the value of current when potential difference across the resistor is 5V. Ans. Finding the current corresponding to 5 V potential difference (from graph) =1.5 A (approx.) Question 5 (a) What does the following circuit symbols represent? (i) (ii) (b) The potential difference between
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The effects that cell phones have on our lives. Cell phones have become a normal part of our everyday living. I have seen people as young as five years old own a cell phone. Nearly everyone has cell phones in this day and age. They have become a necessity for communication. Cell phones offer the ability to communicate with other people with like devices every minute of every day. If you are not able to speak directly with the other person‚ you can leave them a voicemail‚ send them a text message
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Hypothesis If we test the amount of electrolytes in an energy drink and orange juice‚ then orange juice will have more electrolytes than an energy drink. Variables Independent Variable- the two different drinks‚ orange juice and an energy drink Dependent Variable- the amount of electrolytes in each to determine whether or not one has more than another Controlled Variable- same multimeter‚ same brand and type of alligator clips leads‚ same gauge‚ length‚ and brand of copper wiring‚ same brand
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What are the Potential Effects of the following? How you could prepare and support children through these transitions and events. • Moving to School • Starting and Moving through Day Care • Birth of a Sibling • Step families/adoption or Foster Care • Moving Home • Moving between Settings and Carer Transition. Moving Through Day Care & Moving to School. As a child you can have many different experiences that may or may not have some effects on that you depending on how they may be able to cope
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Cell Phones Are Here To Stay Today cell phones have become like an accessory that accents our wardrobes. Cell phones are used for far more than just phone calls anymore. Some may even argue that they have become a distraction‚ a nuisance‚ or annoying even. At the end of the day‚ most of the people that would make this claim prove to be hypocrites and own a personal cell phone their own. Almost anything needed is virtually at fingertips. This one device has brought communication to your fingertips
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Abstract The following experiment details the effect of different concentrations of catalase on the production of oxygen and water through the breakdown of Hydrogen Peroxide. In this experiment paper disc where coated in varying concentrations of catalase‚ 0‚ 25‚ 50 75 and 100%. The time taken for the disc to float between two markers on the side of a glass was then recorded. This experiment demonstrates that the higher the concentration of enzyme used the greater the production of oxygen on the
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Could one imagine managing life without a cell phone? Today‚ communication is available anywhere at any time in the United State. Using a cell phone is now the normal way of life. Many Americans have done away with a home phone and begun to use the cell phone as a basic source of communication. Cell phones have affected this country by providing convenient communication and saving lives. The cell phone has made communication convenient by doing away with the confinement of a corded home phone.
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RBMOnline - Vol 18. No 1. 2009 148-157 Reproductive BioMedicine Online; www.rbmonline.com/Article/3628 on web 3 November 2008 Review Cell phones: modern man’s nemesis? Ashok Agarwal is a Professor in the Lerner College of Medicine at Case Western Reserve University and the Director of Center for Reproductive Medicine‚ and the Clinical Andrology Laboratory at The Cleveland Clinic‚ Cleveland‚ Ohio‚ United States. He has published over 400 scientific articles‚ reviews and book chapters in different
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Main Experiment Introduction In this experiment I am going to investigate the effect of varying concentration of a differing glucose solution on the amount of osmotic activity‚ between the solution and a potato tuber of a given size. The purpose of this experiment is to demonstrate how living cells rely on osmosis‚ the diffusion of water. Osmosis is the movement of water molecules (H20) from a region in which they are highly concentrated
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