Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.

Fact: the shape of body parts is an inherited characteristic
Billy's new puppy had floppy ears. That might be because?

Fact: a rainbow is formed by refraction of light by splitting light into all different colors
If a sunbeam shoots through a rainstorm,?

Fact: a mirror reflects light
if a person looked a their head in a mirror, and moved toward it, what would happen?