Rubbish can pollute the Estuary. Crabs live under rocks in the Estuary so they should not be moved. There is a food chain in the Estuary where big animals eat little animals and little animals eat micro-organisms.

1. Room 14
The Estuary

2. Rubbish can pollute our Estuary

3. Don’t move the rocks. The crabs live under the rocks.

4. The mud snail eats lots and lots of mud every hour.

5. There is a food chain on the Estuary. The big animals eat
the little animals and the little animals eat the
micro-organisms.