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