If you're in the Netherlands and have access to a garden, park of schoolyard, you can join our citizen science project by downloading the chart and looking for soil animals.
More details (in Dutch) of how, what and where are on the special Bodemdierendagen-website.
Good luck!
Details about the different species, their function, soilbiodiversity, nice facts, educational ideas, maps with the results from the earlier years and more...