Integrative record A · Explain and limit
This fresh task can elicit beginning evidence. It is not an equivalent form of record B. If previously shown, record exposure and use it for practice. No physical experiment is required.
Fresh matched 100 g covered water samples start at 38°C in 20°C surroundings. 12 min; all cups/lids/exposure/readout match. Covered liquid water; cups/lids, mass, starting temperature, duration, exposure and reading procedure match within and across trials. Surroundings stay at the stated room temperature. No ice, phase change, active heating/cooling, direct sunlight or meaningful evaporative cooling. Each trial uses fresh samples. Accuracy is not supplied.
Constructed teaching data: these values were invented for this activity, not collected in an experiment.
| Paired trial | Sleeve H final °C | Sleeve J final °C |
|---|---|---|
| 1 | 32 | 34 |
| 2 | 31 | 33 |
| 3 | 32 | 34 |
PF-A1. Read the headings, units and interval. Find the temperature fall for each design in each trial. Which sleeve better limits cooling in these records? Use at least two matched comparisons.
PF-A2. Identify warmer and cooler parts; explain the net transfer direction and connect the idea to the readings. What can this record not establish?
Keep A1 out of view until you have recorded your initial claim.
Integrative record A · New evidence
New record: only H tested in 25°C surroundings. 100 g starts at 38°C; 12 min; other stated procedures match initial record. Covered liquid water; cups/lids, mass, starting temperature, duration, exposure and reading procedure match within and across trials. Surroundings stay at the stated room temperature. No ice, phase change, active heating/cooling, direct sunlight or meaningful evaporative cooling. Each trial uses fresh samples. Accuracy is not supplied.
Constructed teaching data: these values were invented for this activity, not collected in an experiment.
| Setup | Water g | Start °C | After 12 min °C |
|---|---|---|---|
| H only, 25°C room | 100 | 38 | 35 |
PF-A3. Compare the new conditions with A0. Retain, narrow, change or withhold a conclusion as justified. Write the original bounded claim and a revised claim. Can the new record rank H and J at 25°C?
PF-A4. Propose a matched next comparison for a question you name. Which raw readings and conditions would you retain?
Use connected prose, an oral explanation pointing to data, or a labeled model. No fixed paragraph template is required.