The floating egg experiment – How much salt is needed to make an egg float? Aim: To investigate the effects of salt on the density of water (and therefore the ability to float an object in said water) and to find the amount of salt needed to float one regular egg in a glass of water. Research: Internet research shows that adding salt to water increases the density‚ and in turn makes it easier for objects to float. 4-10 teaspoons of salt in 1 glass of water is said to be enough to make one egg
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The aim of this experiment was to replicate the Primacy effect‚ which investigates the effects of ascending and descending performances on attributions of intellectual ability‚ illustrating that individuals’ perception of another individual is influenced by their first impression of that person to the detriment of all subsequent impressions. The design included independent groups‚ and the 46 participants over 16 years old (25 males and 21 females) were chosen through convenience sampling. The latter
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Chem 21 Fall 2009 Experiment 9 — Recrystallization _____________________________________________________________________________ Pre-lab preparation. (1) Read the supplemental material from Zubrick‚ The Organic Chem Lab Survival Manual. (2) Draw the structure of acetanilide and report relevant physical data. Be sure to cite the source of the data. You should be able to figure out what’s relevant by reading the procedure. (3) Find and report the boiling points of the solvents you will be using
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Design of Experiments (DOE) Tutorial Design of Experiments (DOE) techniques enables designers to determine simultaneously the individual and interactive effects of many factors that could affect the output results in any design. DOE also provides a full insight of interaction between design elements; therefore‚ it helps turn any standard design into a robust one. Simply put‚ DOE helps to pin point the sensitive parts and sensitive areas in designs that cause problems in Yield. Designers are then
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subjects in experiments. The use of human beings for experiments or research can have lasting negative effects on that individual such as emotional and psychological damage. The Milgram experiment even though it was a hoax had a lasting effects on many of it’s participants in both positive and negative ways and is a example of why humans should not be used as test subjects. The Milgram experiment was conducted by Stanley Milgram a assistant professor of psychology at Yale. The experiment wanted to
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Habitat Slaters mostly inhabit moist areas and are commonly found under rocks and logs‚ in leaf litter in forested areas and in the garden. Some species are found in the semiarid regions of inland Australia and several introduced species are common inhabitants of suburban areas commonly living in compost heaps and other moist situations. http://www.ento.csiro.au/education/allies/isopoda.html (19/03/15) Where to find them? Slaters (woodlice) in a native beech forest‚ New Zealand. Terrestrial Isopoda
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The Milgram Experiment Outline Topic: The Milgram experiment I) The experiment A) Who was involved with the experiment? B) How they got participants C) What the subjects thought was happening i)Learning Task ii) Memory Study iii) Electric shock for wrong answer iv) “Prods” to continue the shocks D) What actually happened i) It was a test for obedience not memory ii) Vocal response from the victims
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unethical experiments on human subjects; regardless of what their condition is or if they have been diagnosed with a disease. Although‚ the use of humans for experiments to further develop cures for diseases‚ or to improve weaponry in war has always been a questionable practice. Hundreds of medical experiments have been performed by various doctors such as: The Tuskegee Syphilis Study by the U.S Public Health Service‚ the experiments conducted in Nazi Germany by Josef Mengele‚ the experiments performed
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PLANT GROWTH EXPERIMENT Numerous environmental variables influence plant growth. Three students each planted a seedling of the same genetic variety in the same type of container with equal amounts of soil from the same source. Their goal was to maximize their seedling’s growth by manipulating environmental conditions. Their data are shown below. Plant Seedling Mass (grams) Day 1 Day 30
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Evaluation Evaluation Experiment one: This experiment was quite accurate‚ as when it is compared to the manufactures line which is on the same graph‚ we can see that this line is at most only 0.4? different form the manufactures line. This is a percentage difference of approximately 8%‚ using the formula: Difference ? original X 100 This shows that the results were good‚ as 8% is a very small margin of error. The error bars on the graph show that the most inaccurate result was the 60cm result
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