The night sky was clouded with a tired haze‚ sending the city into an emotional collapse of anything exciting. Even the typically wild taxi services buzzed with boredom‚ and the street lights sent any bystanders into a mental slumber. With bland weather‚ came bland people‚ who had many things to accomplish while the rest of the city folk were caught in the whirlwind of disinterest. Genevíve Luther was one of those bland people‚ and she indeed had many things to accomplish that evening. Though‚ those
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he mass and length of the potato piece must be kept the same in each experiment primarily because they affect the surface area of the piece‚ and varying surface area could have a great effect on the rate of osmosis. This is because in an experiment where the potato chip has a large surface area‚ there is a larger area of partially permeable membrane and therefore more opportunity for water particles to pass through. I will keep the surface area the same by keeping the mass and length
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Thomas Graham studied the behavior of the diffusion of gases of unequal densities when placed in contact with each other‚ using air as his control. He wanted to numerically prove how the diffusion of the gas volumes was inversely proportional to the value of the density of the gas‚ under constant temperature and pressure. The significance of this experiment was that in led to a reevaluation of the concept of the movement of matter‚ realizing that diffusion dealt with small immeasurable elements of
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Factors Affecting Diffusion How does temperature affect diffusion? What is Diffusion? Definition 1: Diffusion is a process where by molecules move from an area of high concentration area to an area of low concentration. Definition 2: Diffusion is an evidence for moving particles. The spreading out of a gas is called diffusion and it takes place in haphazard and random way. Gases diffuse because the particles collide with other particles and bounce of in all directions. For example when
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Throughout this lab‚ diffusion and osmosis has been seen and tested through experiment. In part A of the lab‚ diffusion was demonstrated with two solids and an agar gel petri dish. One crystal of potassium permanganate and one crystal of methylene blue were placed on either side of an agar gel petri dish. The purpose of this experiment was to determine which of the crystals would diffuse across the gel more. So the question is‚ which solid would have a higher rate of diffusion through the agar‚ methylene
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DIFFUSION REVIEW WORKSHEET 1. Define diffusion and what causes it to occur? The action of spreading the light from a light source evenly so as to reduce glare and harsh shadows. Diffusion is caused when entities are small and moving in molecules. They collide because they are moving at a random pace. The temperature causes diffusion. 2. Define the terms hypertonic‚ hypotonic‚ and isotonic solution. * Hypertonic: Having increased pressure or tone‚ in particular. * Hypotonic:
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Diffusion in Cells Isabel Zak Question: How does the size of a cell affect the distribution of chemicals throughout the cell? Hypothesis: The larger the cell is‚ the more difficult it will be for the chemicals to reach the centre of the cell‚ and diffuse throughout it. This is because there will be a higher surface-area to volume ratio in the larger cells‚ making the centre of the cells further away from the surface. Therefore‚ when dipped in sodium hydroxide‚ the larger cells will not
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1 Diffusion is the movement of molecules (or ions) from a high concentration to low concentration. Diffusion is form of passive transport as energy does not need to be generated. Diffusion is complete when the concentration of molecules is equal on either side of the membrane. Diffusion rate can be influenced by many factors such as: Concentration gradient across the the membrane. Permeability of the membrane to the diffusing substance. Temperature. Surface area of the membrane. Question 2 2.1
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Is being a bully or a bystander worse? I know that being a by standard is worse. The reason is you are watching a kid get hurt by another kid. The bystanders should go tell a teacher or an adult. Bullies are bad also but I would feel a lot worse watching an innocent kid get hurt. These are some of the reasons students are bullied. Some kids are bullied because of their race and others their religion. They may be bullied because of their friends or the people that they like to hang out with
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what if you were put in the position to defend someone. Would you do it? Most people’s initial response would be: “Yes! Of course!” But are you willing to get involved and possibly take the risk of being accused? Taking a second guess? I believe bystanders have an obligation to get involved in whatever case comes up in the safest possible manner. As an example‚ I will be using the cases of Shanda Sharer. Shanda was a girl being tortured by four other girls her age‚ at first. Two of the girls‚ Lawrence
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