EXPERIMENTAL SCIENCE PROJECTS:The Effect of Salt on the Boiling Temperature of Water(Initially prepared by a 4th Grade student)To quickly jump to a section below click on:INITIAL OBSERVATIONCooking instructions tell you to add salt to water before boiling it.PROJECT TITLEThe Effect of Salt on the Boiling Temperature of WaterPURPOSE OF THE PROJECTTo find out how table salt affects the boiling temperature of water.HYPOTHESISAdding table salt to boiling water will cause the water to boil at a higher
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a specific time for the reaction to complete. By increasing the temperature‚ the time it takes (the rate) for the solution to completely change to colourless will be increased. Thus it can be said‚ that it is being hypothesized that an increase in temperature will cause an equal increase in the rate of the reaction. Method:1). Using a measuring cylinder‚ place 50 cm3 of sulphuric acid into a 250 cm3 beaker‚ add 50 cm3 of water using the same measuring cylinder‚ and then‚ from a burette‚ run in 5
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Using a spirometer to investigate human lung function The purpose of this activity is: • to show how a spirometer can be used to find the vital capacity of lungs and to calculate important subdivisions of this capacity. • to show how to interpret the trace resulting from use of a spirometer • to consider how to use a spirometer to estimate metabolic rate. Procedure SAFETY: Do not use a spirometer unless supervised by a teacher. If you are using the spirometer and you experience
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Jiny Chung Per:8 9/19/12 Lisa See‘s Snowflower and the Secret Fan grabbed my attention from the start. BLily the main character of the book‚ is very much like me and yet‚ in some ways‚very different. Lily has a strong determination to achieve what every Chinese woman should do back in the days before the revolution of China. When she was young she was destined to be the lao tong‚ “old same” and to share a deep friendship with Snowflower for the rest of their lives. Lily and Snowflower experience
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Nowadays everybody is talking about the internet‚ a century creation‚ which has converted the whole world into a single home. The use of internet has turned our lives to be much easier and comfortable. It is found that in 1990s the adolescents used the internet primarily for entertainment but at present they use it for interpersonal communication. Opportunities for youths to form‚ maintain and develop relationships on the internet have multiplied in the past few years. Along with the increase in
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A2 Practical Investigations Title: The effect of Temperature on the growth of Aspergillus oryzae Develop a Hypothesis This particular investigation is to discover how a range of temperatures effects the growth rate of the fungi Aspergillus oryzae. Most fungi’s tend to survive within the temperature range of 5-35oC‚ with the optimum depending on their normal environmental temperature. The fungi Aspergillus oryzae is heterotrophic which means they taken in their food from dead organic matter and cannot
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October 9‚ 2013 Using Their Resources I am not a poor inner city kid. I am a teenage white girl who comes from a middle class white background. So life is easier for me. But that doesn’t mean that the succession is impossible for those kids from the inner city. It doesn’t mean that there are no opportunities for them. I believe that everyone in this country has a chance to succeed. Even a poor inner city kid in Kansas City. It takes brains. It takes hard work. It takes a little luck‚ and
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Using the Blu-Ray vs DH DVD example‚ and other sources‚ provide advice to a chief executive officer of a firm for the best strategy to deal with a standard battle Candidate Number: 69619 Word Count: 1569 In the VCR market‚ although Betamax format of Sony was the technologically superior t VHS formats of JVC‚ there were still many factors that led to the dominance of VHS over Betamax. Firstly‚ the recording length is a major factor. Compared with the original Sony Betamax video recorder which could
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There are die-hard fans of Western movies and those who watch Westerns for the action and the great nature scenes and of course those darling horses. There are some Western movies that I like with actors like John Wayne but I was never a real fan. Let’s step back in time to look at a famous cowboy actor named Tom Mix. He died a very strange death on October 12‚ 1940. Mix had was involved in a car accident close to his ranch in Florence‚ Arizona. He was driving his single-seat roadster along a straight
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Controlled Vs Automatic processes: A modified version of a Stroop experiment using colour-associated and colour neutral words. Abstract: This experiment investigated the Stroop effect comparing response times between naming colour ink printed in colour-associated words and colour neutral words. Previous research of two-process theories which support Stroop’s studies [cited in Edgar:2007] found that automatic processes can interfere with controlled processes. To test this interference further
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