Interpret experimental results and connect them to the stated purpose/hypothesis.
Match the conclusion to the exact claim. The best answer uses the data without overstating what they prove.
核心知识
To evaluate a hypothesis, compare the direction of the results with the prediction, then keep the conclusion at the same scope as the data.
深入理解
A good ACT Science conclusion does two things at once:
- It matches the data pattern.
- It matches the size of the original claim.
The usual trap is scope. A result can support a hypothesis without proving it absolutely.
- Support: the observed pattern moves in the predicted direction.
- Overclaim: the answer treats one experiment as final proof or ignores obvious design limits.
Support is not the same as prove. Keep the conclusion at the same size as the evidence.
分步讲解
- Restate the hypothesis in simple terms: what change is supposed to affect what result?
- Read the result pattern: did the measured outcome move in the predicted direction?
- Choose a conclusion with the right scope: supported, not exaggerated.
常见误解
- Trap: Rejecting a hypothesis just because the measured effect was not total or perfect.
- Trap: Choosing a conclusion that goes beyond the evidence by claiming absolute proof.
示例解析
A student hypothesized that increasing salt concentration would reduce the number of radish seeds that germinated. The student placed 20 seeds in each dish. After 5 days, 18 seeds germinated in 0% salt, 15 in 0.5% salt, 10 in 1.0% salt, and 4 in 1.5% salt. Which conclusion is best supported by the results?
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