First find the action in each record. Weathering breaks or changes rock in place. Erosion removes and transports material. Deposition leaves transported grains in a new location. One agent can take part in different processes. A final pile alone does not tell you the whole journey.
Worked example
A root widens a crack without moving the rock: weathering. Later, water carries the loose pieces: erosion and transport. When those pieces settle in a quiet pool, that is deposition. The water did not do the same job in both records.
Four Invented Field Notes
K: Repeated temperature changes crack a rock into pieces where it lies. L: Wind lifts loose grains and carries them across a bare patch. M: Those carried grains settle behind a barrier as the air slows. N: A separate note shows loose grains beside a wall but gives no record of how they arrived. Use only these written observations. No outdoor visit or rock experiment is needed.