Independent check
Independent task · Choose from new results
Work on this record without returning to the model's design choice. You may show your thinking in prose, a labeled diagram, or an oral explanation that points to data.
Three separate trials use fresh 100 g samples starting at 11°C in a 23°C room. Cups, lids, exposure, 20-minute duration, and thermometer procedure match within and across trials. The table shows final readings, not a time series.
Final water temperatures after 20 minutes
Constructed teaching data: these values were invented for this activity, not collected in an experiment.
Trial | No sleeve: final °C | Sleeve C: final °C | Sleeve D: final °C |
|---|---|---|---|
1 | 21 | 18 | 16 |
2 | 20 | 17 | 15 |
3 | 21 | 18 | 16 |
1. Which sleeve is better supported for limiting warming under these conditions? Use at least two matched D-versus-C comparisons.
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2. What differs across the trials, and what pattern stays consistent? You may compare rows directly; a mean is not required.
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3. Explain why the water changed temperature and how the evidence supports your choice. State the direction of net energy transfer.
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4. A fictional student says, ‘Sleeve D cooled the water.’ Agree, disagree, or revise using the starting and final readings.
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5. State one useful conclusion and one question these records do not settle. Name information or a test that addresses that question.
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