Temperature is one of the weather elements and measures the degree of hotness and coldness in a place. The temperature of a place is affected by a number of factors such as latitudinal location‚ seasonal variations‚ albedo of the place‚ contrasts between land and sea and elevation. Latitudinal location has the strongest influence on the climatic conditions on a macro/global scale. The rest of the factors then serves to modify these influences and are secondary‚ operating at a smaller scale. Latitude
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Aim: To observe the effect of temperature on the rate of the iodine clock reaction using ammonium persulfate Assessment criteria: Design Variables: Table 1.1: List of dependent and independent variables. S.No | Dependent variables | Independent variables | Controlled variables | 1. | Rate of reaction | Temperature | Concentration | 2. | - | - | Pressure | 3. | - | - | Volume | Hypothesis: The iodine
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emissivity of the surface was 0.95 and the Stefan Boltzmann constant was 56.7x10-9 Wm-2K-4. The room temperature was assumed to be 25°C which is 298.15K. At a trendy east London bar‚ a group of body hackers are putting forward their reasons for human augmentation to a packed audience of mainly under-35s‚ many of whom are sporting piercings and tattoos. Putting a chip under your skin is not so very different from getting a piercing or tattoo‚ argued one of the panellists - except there was often less blood
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................................... 7 2.2 Why cotton fibers & reactive dyes been used…...............................................7 2.3 Why time is necessary for dyeing cotton fabric with reactive dye....................7 2.4 Effect of time for dyeing cotton fabric with reactive dye………………..……7 2.5 What is organic cotton and how is it grown……………………………….......8 2.6 Why does the industry want to use organic cotton……………….……....……8 2.7 Characteristics of cotton……………………………………………
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Heat‚ Temperature‚ and Phase Changes Assessment Practice Answer This graph shows what happens to the temperature of the water‚ while it was boiling in a kettle‚ as heat energy was being added to it and what the water was doing will it began to warm and change states. During a phase change‚ the temperature remains mainly constant. This occurs because the heat energy is used to break the bonds between the ice molecules as they turn into a liquid phase. It is possible to constantly
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show that different substances catch fire at a different temperature. The lowest temperature at which a substance catch fire is called its ignition temperature. Combustible substances do not catch fire or burn as long as its temperature is lower than its ignition temperature. Now let me do an activity which tells you why reaching ignition temperature is necessary to burn an object. You know that paper catch fire with a flame. Let me
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Temperature affecting enzyme activity Aim: To see how temperature can affect enzyme activity Prediction:-I think the one that will work best will be the rennin placed in milk at 37oC My independent variable will be the temperature My dependant variable will be how thick the milk becomes The equipment I need is milk‚ 5 test tubes‚ rennin‚ water bath‚ boiled rennin‚ a glass rod and a stopwatch Introduction: Rennin is an enzyme found in the stomach‚ its function is to solidify milk. We
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is generated. Collaterals‚ terminals An axon can branch‚ forming many axon ___. At the end‚ axons branch to form many axon ___. Schwann cells What support cell forms the myelin sheath? Integral proteins What structures in the cell membrane function as ion channels? 1) Charge 2) Size 3) How much water the ion can attract and hold What three characteristics of ions are important for selectivity? Nongated Channels can be classified as either gated or nongated channels. A Na+
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The aim for this experiment is to investigate the effects of different storage environments on organic and non-organic bananas‚ to see which one lasts the longest over a period of time. The study was separated into 5 groups that were each labeled to a location in a standard family home that would‚ over time‚ begin to affect the overall form and characteristics of the bananas. Throughout the experiment‚ it was found that “Group 2 – Impact of Air Exposure‚” lasted longer than any other group. Following
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Evidence for and against the Davson – Danielli model of the membrane structure Analysis of evidence from electron microscopy that led to the proposal of the Davson-Danielli model 1. A lighter area sandwiched in between two darker layers 2. Proteins appear dark in electron micrographs and phospholids appear light. This appearance supports the Davson-Danielli model. 3. Proteins stain darkly‚ suggesting that the dark pattern of the cytoplasm of the red blood cell is the distribution of proteins 4
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