Farming:Example of a System

1. Things that enter a system
   1. Some are changed by the system's processes
   2. Some are used to help the processes work

Annotations:

• Usually end in 'ing'

1. The activities that change a system's inputs

1. The things that leave a system as a result of the processes

1. Ploughing
2. Sowing
3. Harvesting
4. Milking

1. Land
2. Labour
3. Farm Machinery

1. Milk
2. Wool
3. Cattle
4. Wheat
5. Barley