Definition of the Problem: We wanted to figure out how the height of a constant amount of water changes in relation to the cross-sectional area of a container. The overall question is what is the relationship between the cross-sectional area of a container and the height the water reaches while in that container.
Controlling Variables:
Independent variable -- Cross sectional area of the container
Dependent variable -- Height of water in the container
Controlled variable -- The amount of water used for each container remained constant throughout the experiment
Our method for the assurance of effective control variables was to remeasure that the amount of water used is 20mL. This was done because throughout collecting data, water could be lost between the cracks of paper in the milk cartons for example; this would decrease the amount of water used in the containers later on.
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Conclusion: In conclusion,
Evaluating Procedures:
Improving the Investigation: An alternative method that would reduce errors and assure an effective control variable would be to remeasure the amount of water to make sure that there are still 20mL being placed and measured inside each container. If this test failed, then we would fill up the graduated cylinder to the proper control amount of 20mL if this method was used. This should have been done throughout collecting data because water could be lost between the cracks of paper in the milk cartons for example; this would decrease the amount of water used in the containers later on.