Base Your Answers on the Passage
Base your answers only on the contents of the passage.
In the case of the Science Reasoning Test, external knowledge has
the potential to hurt you. All of the information you need to know
is in the passage. You may know more about a subject than the ACT
writer designing the questions. If you read something into a question
that the ACT writer didn’t intend, you have a good chance of getting
the wrong answer.
If you use information that isn’t on the test, you may
be outwitting yourself.