Wet sponge works magic.

Losing the group momentum" is the part I see differently. If a group falls apart because one notebook went missing, it probably wasn't that strong to begin with. The story sounds like the opposite, that the problem forced a better, more personal way of working together.

Totally get the guilt, but honestly you're using it right. The key is you still talked about the planets together. The problem is when parents just have the AI do the whole project for the kid without any learning. You turned it into a better study guide, which is smart.