Separate observations, explanation and trust. A fair test can support a causal explanation, but a few imperfect trials do not prove a universal rule. Repeats check consistency, not every error. Safety: Low indoor drops only, clear floor, no furniture climbing or throws. Stop: End after three trials and the report. No higher drops, fans or added weights.

Materials: Two equal paper sheets; Ruler, paper and pencil; Adult partner and clear floor 1. Ask whether changing one sheet from flat to crumpled changes landing order. Write a prediction. Use equal starting sheets of the same paper and a 50 cm maximum lowest-point release height measured above a clear floor. 2. An adult aligns the lowest point of each shape at the same measured height and releases both sheets together without pushing while the learner watches. Keep the flat sheet flat and the other loosely crumpled. Record which lands first, tie or uncertain. Repeat for three trials, resetting shapes and height. 3. Create a written report with headings Question | Controls | Results | Explanation | Trust. Include every trial and mark any release that was visibly unequal. 4. Explain what the test supports about changing paper shape under these conditions. State that air affects falling paper, but this test does not measure air resistance directly. Do not claim the heavier sheet fell first: both began as equal sheets. 5. Rate trust as low, moderate or high for this small comparison, with two reasons about repeats, release quality or uncertain viewing. Read the report aloud and explain one improvement, such as a second observer checking release timing. Done: A written and spoken report gives actual results, a limited explanation and an evidence-based trust judgement. Proof: Keep all trial records and the report. Note unclear releases and adult help. Stop: End after three trials and the report. No higher drops, fans or added weights.