POM - object can be used to predict the sinking and...

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3. The objects below were used by a student in an experiment. The student’s description of the results of that experiment is also given. Wood plastic metal clay “I placed these four objects into water. Two of them sank; two of them floated. The two that floated had a density less than 1 g/cm 3 . The two that sank had a density of more than 1 g/cm 3 . So this experiment proves that the density of the object can be used to predict sinking and floating behavior in water. If an object has a greater density than water, it sinks; a smaller density than water, it floats.” Assume that the student has not done any experiments other than the one described above. A. The experiment which the student has done does not justify the conclusion the student has reached. Explain why not. B. What experiment could the student perform in order to show that the density of an
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Unformatted text preview: object can be used to predict the sinking and floating behavior of that object? Include in your answer a description of the objects in your kit from Section 12 that you could use for this experiment. However, for this part of the question, you should only describe the experiment; no explanation of your reasoning is required. C. Discuss how you could use the results of your experiment to reason that the density of an object can be used to predict its sinking and floating behavior in water. Your explanation should include a discussion of the way in which the idea of control of variables entered into the design of your experiment and into the interpretation of the experimental results....
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This document was uploaded on 10/29/2011 for the course PHSX 201 at MSU Bozeman.

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POM - object can be used to predict the sinking and...

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