An example of a grad-school level question?
A student finds a round, smooth pebble on a beach. Which action made the pebble smooth?

An example of a grad-school level question?
What part of the scientific method involves measuring the growth of a plant over a one-month period?

An example of a grad-school level question?
Traits are transferred from generation to generation through the

An example of a grad-school level question?
When plants undergo photosynthesis, a reaction produces sugar, oxygen, and water. During respiration, stored energy from the products of photosynthesis is converted to usable energy. In what form is the energy stored prior to use in respiration?