An example of a grad-school level question?
Which observation of a plant supports the inference that photosynthesis can take place?
I just took a test in school today. What question was I asked?

Question I was asked: What is the main source of energy for the water cycle?
Random question?

A scientist studies the remains of two extinct animals to learn more about how they lived. She determines that one animal was a carnivore and the other was an herbivore. Which of the following did the scientist most likely compare to make this conclusion?
Generate a question

Question generated: Moving water was the most important factor in forming which of these?
Problem: Write a question you would see in a school textbook.

Answer: A student wants to cut a piece of string for a class activity. The length of the string is measured BEST in which units?
Problem: Write a question you would see in a school textbook.

Answer:
Which of the following is an example of a physical change but not a chemical change?