How Science Works

A Step-by-Step Guide to the Process of Science

How do I answer the question?

Designing an experiment is a crucial part of the scientific process, and trickier than it might seem. To be a fair test, an experiment must look at only one factor at a time, and do so without interfering with the “system” under observation, be it atoms or a troop of baboons. The bugaboo of all research methodologies is uncontrolled variables, factors affecting the outcome that are either unknown or hard to trace.