We made a wormery in nursery with soil, sand and gravel. We put in some leaves and went hunting for worms. The worms have been living there for two weeks.The children have been watching them and making observations: 'Here is the track of the worm. This is where they've been.' 'The little worm is stuck. She can dig all the way to the top.' ' They crawled through the whole soil!' ' They eat dead leaves.'  'They don't like sun.'  'They push their way through the soil with their bodies.'  We know lots about worms now!