5. Uma had a piece of titanium with a mass of 18 grams. Using a graduated cylinder partly filled with water, she determined that the titanium displaced 4 milliliters of water. What is the density of titanium?

A. 0.22 g/cm 3

B. 4.5 g/cm 3

C. 18 g/cm 3

D. 324 g/cm 3


6. Which of the following relies on gathering and evaluating evidence?

A. subjective reasoning

B. pseudoscience

C. objective reasoning

D. opinion