1. Topic 1 = Systems
Biosphere Biosphere = atmosphere + lithosphere + hydrosphere + ecosphere Use page from the blue book to write a definition of each of the above

2. Systems Consist of; Storages (of matter or energy)
Flows (inputs into the system and outputs from the system)
Processes (which transfer or transform energy or matter)
Feedback mechanisms that maintain stability and equilibrium.

3. Use http://teachers. saschina
Slides 1 -19

4. Systems
Task ;
Complete the task in the to do box on page 72 in the blue book. (use page 2 in the green book to help you)
Answer questions 1-3 on biosphere 2 on pg 73 in the blue book.

5. Systems
Task ;
Read pg and make notes to support 1.14 focusing on the second law of thermodynamics.

6. Use http://teachers. saschina
Slides 19-36

7. 1.15 Explaining the nature of equilibrium
Equilibrium is the tendency of the system to return to an original state following disturbance.

8. 1.15 Explaining the nature of equilibrium
Steady state equilibrium is a characteristic of open systems where there are continuous inputs and outputs of energy and matter, but the system remains in relativity constant stable state.- e.g. Climax community.

9. 1.15 Explaining the nature of equilibrium
In a Static equilibrium there are no inputs or outputs of matter or energy and the no change in the system over time e.g. An object – chair. No natural systems are in static equilibrium.
Draw graph time – system state pg 78-79

10. 1.15 Explaining the nature of equilibrium
Stable equilibrium = when a system returns to the original equilibrium after a disturbance. Unstable equilibrium = when a system dopes not return to its original equilibrium but forms a new equilibrium.
Draw graphs – pg 6 green book

11. Systems
Task ; Give 2 examples of steady state and static equilibrium pg 78 Blue book.