Question 3 • SLPS-2001340-Environmental-Science A -GF
As you have seen in this lab, the density of water is near 1 g/cm3. Anything with a density lower than this will float in water, and anything with a higher density will sink. Imagine you are building a submarine. How could you be sure to have it sink and then rise?
Answer
A
Make sure its density is always above 1.0 g/cm3.
B
Make sure its density is always below 1.0 g/cm3.
C
Develop a way to adjust its density so that it can be above and below 1.0 g/cm3.
Explanation
To sink, the submarine must have a density greater than water’s density of about 1.0 g/cm3. To rise, it must have a density lower than water’s. So it needs a way to adjust its density to be both above and below 1.0 g/cm3, as choice C describes.
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