An example of a grad-school level question?
Which types of objects are most easily seen by the human eye?

An example of a grad-school level question?
Genes are located on chromosomes which are composed of

An example of a grad-school level question?
Jennifer has collected rocks while hiking. As she attempts to classify her rocks, which will she put in the pile of sedimentary rocks?

An example of a grad-school level question?
A student places a sheet of black construction paper on her desk. What happens to most of the light that strikes the black construction paper?