1. Writing an

4. Claim
Answers your testable question.

5. Claim Answers your testable question.
Question: “How does soap affect the growth of flowers?”
Claim: Soap inhibits flower growth.

6. Evidence Support from your data. Claim: Soap inhibits flower growth.
Amount of soap (mL)
Flower Height (cm) 24 1 19 3 9

7. Evidence Support from your data. Claim: Soap inhibits flower growth.
Evidence: As the amount of soap applied increases the flower height decreases.
Amount of soap (mL)
Flower Height (cm) 24 1 19 3 9

8. Reasoning
Thinking that involves a “rule” or scientific principle that describes why evidence supports the claim.
Claim: Soap inhibits flower growth.
Evidence: As the amount of soap applied increases the flower height decreases.
Reasoning: The chemicals in soap damage the flowers’ cells resulting in poor plant health.

9. Summary
Why is it important to use the formula Claim + Evidence + Reasoning to describe your explanations in science?