An example of a grad-school level question?
Sir Isaac Newton determined that white light is made up of all the colors of the rainbow. What did he use to discover this phenomenon?

An example of a grad-school level question?
Jenny measures the outside temperature as 16 degrees Celsius (C), 61 degrees Fahrenheit (F). She observes precipitation falling from the clouds in a solid form. What type of precipitation is Jenny most likely observing?

An example of a grad-school level question?
Which action is an example of good water management?

An example of a grad-school level question?
To compare the hardness of different minerals, it would be BEST to find