Science glossary · Canada
Fair test
An experiment where you change only one thing and keep everything else the same.
The thing you change is the variable you test. Keeping the rest the same means any difference must come from that one change.
Example: To test which paper towel holds most water, use the same size sheet and the same amount of water each time.
Lessons, worksheets, practice and tools on this: Science investigations.
Related words
- Hypothesis: A testable guess about what will happen and why.