Another variable: time

I did a test run of my experiment and took these pictures (the stepladder in the bath was my Dad's idea).

This is the stepladder in the bath, without any sticks/weights on it yet.

These are the crosses (they have two rungs so it doesn't rotate), drying. The paper is marked with the approproate distance apart for the rungs, and the time they were made.

This is the setup with the bag (below) and matchsticks.

I was checking the setup worked properly. This afternoon I'll do the first actual experiment (with the times measured out).