An example of a grad-school level question?
A student is using hydrochloric acid in an investigation. Which piece of safety equipment is most important during this investigation?

An example of a grad-school level question?
What statement describes what happens to the carbon dioxide waste produced by a developing baby during pregnancy?

An example of a grad-school level question?
A student put 200 milliliters (mL) of water into a pot, sets the pot on a burner, and heats the water to boil. When the pot is taken off the burner, it contains only 180 milliliters (mL) of water. What happened to the rest of the water?

An example of a grad-school level question?
Which of the following is the primary advantage of sexual reproduction when compared to asexual reproduction?