2. A plastic ball with a volume of 19.7 cm has a mass of 15.8 g. Would this ball
sink or float in a container of gasoline? (The density of gasoline is 0.77 g/cm)
3. Would the density of a person be the same on the surface of the earth and on the
surface of the moon? Explain.
4. What is the symbol and meaning of these common metric prefixes: (See Geology
Locker for help)
(a) milli
(b) nano
