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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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    An Investigation of Factors Affecting the Rate of Osmosis Introduction Osmosis is the movement of water molecules across a semi permeable membrane from a region of high water concentration to a region of low water concentration. [IMAGE] A semi permeable membrane is a membrane with very small holes in it; they are so small that only water molecules can pass through them. Bigger molecules such as glucose cannot pass through it. In actual fact water molecules pass both ways through

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    Investigation of Factors that May Influence the Way People Learn In this task I am going to explore the factors that can influence the way people learn. Learning is a difficult word to give a definition to as it can be used in many different contexts. However, most people take the word ‘learning’ to mean acquiring new knowledge or skills. Some types of learning can result in a permanent change in behaviour or cause us to act in a certain way. In this task I am going to explore some theories

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    Investigation of Factors Affecting the Rate of Breakdown of Hydrogen Peroxide by Catalase Certain reactions in the cell produce hydrogen peroxide, which is poisonous. The enzyme catalase is able to render it harmless producing water and oxygen. Prediction I predict that as the concentration of hydrogen peroxide increases, so will the amount of oxygen released in a given time. This is because in an increased concentration of hydrogen peroxide there are molecules to come into contact

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    Investigation of Factors that Affect the Rate at Which Hydrochloric Acid Reacts with Sodium Thiosulphate Planning: This investigation is about rates of reaction and what affects them. In this case I am going to look at hydrochloric acid and sodium thiosulphate which is a precipitation reaction. They react as in the equations below: Sodium thiosulphate + hydrochloric acid -> sodium chloride + sulphur + sulphur dioxide + water Na2S2O3(aq) + 2HCl (aq) -> 2NaCl (aq) + S(s) + SO2(g) +

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    An Investigation Into the Factors Affecting Osmosis Problem. In this investigation I am trying to find the effect of placing potatoes cut into French fries into salt solutions of different concentrations and the subsequent percentage difference in weight between potatoes placed in different salt concentrations. Hypothesis. Osmosis is the transfer of water from a region of high water concentration through a selectively-permeable membrane to a region of low water concentration. A selectively-permeable

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    An Investigation into Factors Affecting Resistance of a Wire Plan: The possible variables I could use to find out factors affecting resistance are material wire is made of, length of wire, temperature and cross sectional area of wire. I will use cross sectional area of wire and length of wire because I think it will be hard to draw conclusions from the material of wire. I am not doing temperature because it would be hard to get results from and I think they wouldn't be as accurate.

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    An Investigation into the Factors which Affect Osmosis Osmosis is defined as the movement of water molecules from a higher concentration to a lower concentration through a partially permable membrane. Osmosis occurs with molecule moving in and out, these molecules move across the plant’s cell membrane. The plant’s cell membrane is partially permable and therefore it has small holes in it which allow for small water molecules to pass through it however larger molecules such as glucose through

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    An Investigation of the Factors Affecting the Period of a Pendulum I could investigate the following factors: * Angle of displacement * Length of string * Pendulum weight I am going to investigate and see if varying the length of string will affect the period of the pendulum. My prediction is: The longer the string the longer the period. The period will be longer as the pendulum has farther to travel. My theory is demonstrated below. Pendulum A has a shorter string. This gives

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    Investigation into the Factor of Light and Dark Affecting Woodlice Predictions It was expected that a woodlice would prefer a damp, dark, but moderately warm surrounding. Normally one would expect to find slaters under logs or concrete slabs in one's garden. Under these large objects, the sun cannot reach directly; therefore it is darker, damper and colder than the surroundings. Nevertheless, in winter we do not see woodlice crawling around very often, and, also at night, it may actually

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