Name ______Block ______
Density Virtual Lab 1) Complete the first two columns using the Density Laboratory Gizmo on ExploreLearning.com. You can find the mass by placing the object on the scale. Then find the volume using the water displacement once you drop it in the graduated cylinder. 2) Find the mass and volume of the objects. Calculate the density of the objects (mass divided by volume). 3) Write "YES" if the object floats, and "NO" if the object sinks. 4) Rank: Number the objects from lowest density (1) to highest density (10).
Description Mass Volume Density (g/mL) Float? Rank (g) (mL)
Object 1
Object 2
Object 3
Object 4
Object 5
Object 6
Object 7
Object 8
Object 9
Object 10 Answer the following questions after completing the chart above. 1) What is the density of the liquid in the pail? ______g/cc = g/mL (Note a cc is the abbreviation for cubic centimeter, which is equal in volume to a milliliter, abbreviated mL) 2) Do you notice any correlation (pattern) between the density of an object and the ability of the object to sink or float? ______If so, state your finding below.
3) Which object has the greatest volume? ______the least? ______4) Did the objects in #3 float? If so which one(s)? ______5) Which object has the greatest mass? ______the least? ______6) Did the objects in #5 float? If so which one(s)? ______7) Which object has the greatest density?______the least? ______8) Did the objects in #7 float? If so which one(s)? ______Part 2: Procedure: 1) Copy the object’s density from the previous side of this worksheet into the chart. 2) Change the density of the liquid from 1.0 g/cc to 0.5 g/cc by moving the arrow under the “pale of liquid”. Drop your object to see if it floats. Then change the density to 1.5 g/cc, to 2.0 g/cc, and then to 2.7 g/cc recording your results below. 3) Repeat step 2 for each object
Fluid Density 0.5 g/cc 1.5 g/cc 2.0 g/cc 2.7 g/cc
Description Object Density Float? Float? Float? Float?
Object 1
Object 2
Object 3
Object 4
Object 5
Object 6
Object 7
Object 8
Object 9
Object 10
After completing the chart answer the questions below: 1) Which objects floated with a liquid density of 0.5 g/cc that did not float when the liquid density was1.5 g/cc?
2) How did the density of the objects that sank compare to the density of the liquid they were in at the time?
3) What is the minimum liquid density that floats all the objects except one? ______4) Does the mass of an object tell you whether or not the object will sink or float? ______5) What about the volume (do the bigger objects sink compared to small ones)? ______6) What property of matter allows you to determine if it sinks or floats in a given liquid? ______