Construct the choice chamber using a petri dish, divider and a fine mesh.
Create the required conditions. For example cover one half of the lid with black paper to investigate light intensity or put damp filer paper on one side and the other a drying agent to test for humidity.
Place 10 woodlice on the mesh in the centre of the chamber.
After 10 minutes record the number of woodlice on each side of the chamber.
Repeat the experiment after gently moving the woodlice back to the centre.
