Cambridge Secondary (7-9). Stage 9. MCE Science. Workbook - Unit 8: Rate of Reaction - Question 21

Attach one hook piece and one loop piece of fastening strip (each 2 cm long) to different spots on each of two tennis balls using adhesive tape. Gently roll or toss the balls towards each other 10 times. Record whether they stick together and whether the strips meet with the correct orientation.

Use the table to record your results for each trial.

| Trial | Did the balls stick together? (Yes/No) | Reason (Orientation correct/incorrect) |
|---|---|---|
| 1 | … | … |
| 2 | … | … |
| 3 | … | … |
| 4 | … | … |
| 5 | … | … |
| 6 | … | … |
| 7 | … | … |
| 8 | … | … |
| 9 | … | … |
| 10 | … | … |