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The Scientific Method - Lab Report Example

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In this case, quantitative studies of dissolving oxygen in water would be used together with experimental tools. Scientific method involves…
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The Scientific Method
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"The Scientific Method"

Download file to see previous pages The quantity of oxygen dissolved would be controlled by beginning from 20ppm and twenty fish. After this the amount of oxygen would be lowered slowly up to 0ppm. In this instant, as per the hypothesis set, there would be zero fish within the water.
The control variable for this experiment would be temperature of water. This is so because for accurate results of this experiment, the temperature of water needs to be kept constant. Otherwise it will alter or give out biased the results of the experiment.
For this data set, a line graph would be most appropriate representation. This is so because line graphs are normally used in making comparison and representing data that have a time series. This graph is the most appropriate for this data, because it displays a clear magnitude change.
In this observation, we hypothesize that the rate at which the plant grows depends on the quantity of sunlight. The null Hypothesis for this observation would be; the rate at which a plant grows is not controlled by the quantity or degree of sunlight. The approach used would be moving the plant around the specific room. The dependent variable shall be the plant growth whereas the independent variable shall be the sunlight amount. The control variable for this observation shall be a plant placed in the shade. Data shall be collected using a pencil, stopwatch, ruler and a clipboard. Presentation of data shall be done using a bar graph. This data would be interpreted using an excel program or an SSPS program.
In this observation, we hypothesize that the Bank tellers having brown hair with brown eyes certainly would be taller in height. The null Hypothesis, in this case, shall be the bank tellers height has no relationship with their eye or hair color. The approach of experimentation to be used would be observing tellers who work at different banks. The dependent variable for this observation is the bank teller’s height and the independent variables are the bank teller’s ...Download file to see next pagesRead More
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