Question

Why is the scientific method described as nonlinear?
The steps of the scientific method are repeated in a cycle.
Scientists often repeat one or more steps several times.
Sometimes scientists forget to perform some of the steps.
The steps can be performed only once but in any order.

Answer 1

Correct answer: Scientists often repeat one or more steps several times.

Why: The scientific method is iterative — results often lead you back to reformulate hypotheses, design new experiments, or collect more data. That back-and-forth (not a single straight sequence) is why it’s described as nonlinear.

Why the others are wrong:
- “Repeated in a cycle” is true in spirit but is less precise than the idea of repeatedly revisiting specific steps.
- “Sometimes scientists forget steps” isn’t the reason for nonlinearity.
- “Steps can be performed only once but in any order” is false — steps are usually revisited, not done just once.