LET’S TRY ONE
To test whether light affects seedling growth, which factor should differ?
the amount of light
Light is the factor named in the test question.
Learning steps & teaching tips
Change one tested factor while keeping other relevant conditions alike.
- Identify the factor being tested and keep the comparison conditions consistent.
- Work through the example. Explain how its evidence supports the answer.
- Try a new question; use the explanation to check your thinking.
Try it together
Make one new example with a partner. Identify the evidence for your answer before checking it together.
Identify the factor being tested and keep the comparison conditions consistent.