Homework 5

Density and Displacement

1) Bring in a plastic soda bottle of at least 20 oz WITH cap!

2) Mix cooking oil and water together in a cup at home. Describe what happens. Explain why this happens in terms of density.

3) If possible, take a bath (if not, just use water in a cup and a large object). Note the water level before you get into the water;
a. What happens to the water level when you get in?
b. Why does the water level change?
c. How could this information be useful for finding density?

4) Calculate the Density for each of the following objects;
a. Mass = 55 g Volume = 105 mL
b. Mass = 34 g Volume = 40 mL
c. Mass = 75 g Volume = 60 mL
d. Which objects will float in water, and which will sink?