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: bacteria cause food poisoning
How can you help to ensure that you will stay free from becoming ill after eating meat?

Fact: melting is when solids are heated above their melting point
A plastic toy reduced to a puddle was left on a?

Fact: if an organism 's prey moves quickly then that organism may need to move quickly to catch its prey

A lion is hunting antelope. The antelope are fast, faster than the lion expected. To eat today, the lion needs?