Independent check
Independent task · Fresh critique
Both setups are in a 24°C room. Cups, lids, exposure position and reading method match. The sleeve design, mass and duration differ.
New imagined comparison
Constructed teaching data: these values were invented for this activity, not collected in an experiment.
Setup | Mass (g) | Start (°C) | Time (min) | Final (°C) |
|---|---|---|---|---|
Sleeve E | 80 | 12 | 10 | 18 |
Sleeve F | 120 | 12 | 20 | 16 |
1. Calculate each change. A fictional answer says “F works better because its water warmed less.” What is supported and what is too strong?
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2. Identify the confounds and specify a repaired comparison with actual masses, starts and duration.
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3. Describe how to repeat and record that comparison. State one limit even after repair.
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