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Title: Measuring the Density of Various Objects Problem Statement: How do the densities of the objects compare? Method and Materials: Measure the mass of each object with the balance. Measure the volume of each object by filling a graduated cylinder with water to a set level. Drop the object into the cylinder with the water and measure how much the water level rises. That is the volume of the object. Density = mass divided by volume. Hypothesis: (List the objects in the order that you think will be from most dense to least dense.) 1.______________________________ 5. ______________________________ 2._____________________________ 6. ______________________________ 3.______________________________ 7. ______________________________ 4.______________________________ 8. ______________________________ Results:(part 1) Object Mass(g) Volume (ml) Density (g/ml) Rank Part 2: Measure the density of a rubber stopper, then and measure the density of two rubber stoppers. Hypothesis: How do you think the density of one rubber stopper will compare to the density of two rubber stoppers? ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ Results:(Part 2) Object One stopper Mass (g) Volume (ml) Density (g/ml) Volume (ml) Density (g/ml) Two stoppers Part 3: Measure the density of water: (You have to figure out how.) Mass (g) Water Discussion Questions: (Type and attach) 1. Explain why the results for the rubber stoppers came out the way they did. Make sure that you use the formula for density in your answer. 2. Explain the method you used to measure the density of water? 3. If an object has a density of 1.9 g/ml would it float or sink in water? Explain. Conclusion: List the objects from most to least dense 1.______________________________ 5. ______________________________ 2._____________________________ 6. ______________________________ 3.______________________________ 7. ______________________________ 4.______________________________ 8. ______________________________