In my experiment‚ I investigated the question “How does the amount of solute affect the time it takes for the solute to dissolve?” I thought about this question for a very long time and come up with a hypothesis for the investigation was “If the amount of solute increases‚ then the time for the solute to dissolve will increase. This is because the solute will become more concentrated and it won’t disolve into the solvent as fast. (Sadner‚ 2008)” Looking at the data I collected‚ I think that this
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It follows that charitable companies should offer a few thank you gifts to increase donations right? Wrong. According to a recent study by George Newman and Jeremy Shen‚ thank you gifts actually decrease charitable donations. Six separate experiments were utilized within this study to explain the counterintuitive phenomenon. Their findings offer support for the motivational crowding theory‚ in which extrinsic motivators such as gifts undermine intrinsic motivation. Shen and Newman initially
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Animal experimentation has been a commonly debated subject for many years. There are two aspects for why animals’ testing is wrong. The first aspect is that these experiments would not necessarily work. The other aspect is that these experiments are morally wrong and doesn’t do us any good. Animals should not be used in laboratory experiments. Animal research would not necessarily work. The benefits to human beings are not proven. Doctors might succeed trying a medicine on animals but it might not
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Throughout the experiment‚ there were 3 significant error I made. Firstly‚ at first when I conduct my experiment‚ I measured 10g of ascorbic acid powder and mix it within 1 litre of water. I believed that by having the solution prepared before putting in the d-block elements would save time overall. Unfortunately‚ the data was all over the place‚ this is because the later I conduct the experiment‚ there is a higher chance of oxidation occur in the ascorbic acid solution as it have a direct contact
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Project Design Plan This experiment is to test the theory that the temperature of water affects the duration of time it takes to water to reach freezing? Hot water freezing faster than cold has been observed for many centuries. The earliest known reference to this effect is by Aristotle‚ who wrote: "The fact that water has previously been warmed contributes to its freezing quickly; for so it cools sooner. Hence many people‚ when they want to cool hot water quickly‚ begin by putting it in the
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acting in a plane of symmetric. If loads do not act in plane of symmetry‚ this leads to deflection in a plane perpendicular to the loading plane as well as in the loading plane. This coupling does not occur if the loading is in principal plane. The experiment was conducted to investigate the deflections of the tip of a cantilever when loaded transversely in directions not coinciding with the principal axes of the cross section‚ and also to determine: 1. The directions and orientations of the principal
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in order to prove the effect of the test variable by comparing conditioned and unconditioned groups. A conditioned group is a group who receives the independent variable. An unconditioned group does not receive the independent variable. In this experiment we are testing the effects of cell phone usage on driving skills. In this case‚ the control group gives us an example of what happens when drivers are focusing on the road. The results from the control group will show us what happens when the driver
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Controlled Experiment to Investigate the Correlation between Keystroke Latency and Programming Performance Junisilver Taij This report is submitted as partial fulfilment of the requirements for the Honours Programme of the School of Computer Science and Software Engineering‚ The University of Western Australia‚ 2005 Abstract Programming is a complicated skill to master‚ and learning to program is complex. The difficulty of first year students studying computer science is that they generally
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hypothesis. Understand how to design an experiment that tests a hypothesis. Explain the elements of a well-designed experiment‚ including controlling the variables. Understand how taking data and analyzing it is important in a scientific method. Understand the difference between qualitative data and quantitative data. Describe how forming conclusions and communicating results are important in a scientific method. Understand that sometimes new hypotheses or new experiments need to be made. MAIN IDEAS/QUESTIONS
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variable that is changing in the experiment. It is sometimes called the manipulated variable. There can only be one independent variable‚ as any more than one can lead to unfair results. A Dependent Variable is the variable that is getting recorded‚ made by the changes of the independent variable. A Controlled Variable is the variables that you must keep constant during the test‚ to ensure the fairness of the test. EXAMPLE An example is an experiment looking at the growth of trees in
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