An example of a grad-school level question?
When the switch in a simple series circuit is closed, what happens to the light bulb that the electricity is flowing to?

An example of a grad-school level question?
A student is shown a slide of cells from a species of producer in a food web. The student observes that the cells have chloroplasts. What conclusion about the food web is best supported by these findings?

An example of a grad-school level question?
Many products are made from trees. Which is the best way to manage the use of trees?

An example of a grad-school level question?

As part of an experiment, an astronaut takes a scale to the Moon and weighs himself. The scale reads 31 pounds. If the astronaut has a mass of about 84 kilograms, which are the approximate weight and mass of the astronaut when standing on the Earth?