An example of a grad-school level question?
Which measurement tool is used to find the volume of a small piece of granite?

An example of a grad-school level question?
A student is playing with a small toy boat on a pond. The student throws a rock in the pond. This creates waves that move the boat toward the shore. The boat moves toward the shore because the waves transfer

An example of a grad-school level question?
Which combination of letters could be used as a chemical symbol for an element?

An example of a grad-school level question?
A difference between the oceanic crust and the continental crust is that the oceanic crust is