Each year my year 8 pupils complete an ecology based investigation in and around the school site during their final weeks before the end of term. Every year several groups choose to investigate which areas of the school have the greatest number of worms. They then "charm" the worms up by using several buckets of water. In previous years they have collected handfuls of worms, but this year none! There has been no spraying of any kind at school and it has not been particulary dry. Anybody got any ideas?
