System Diagrams 1.2

Question 1

Transformation

Answer 1

Change of chemical or physical nature

Question 2

Energy flows

Answer 2

Cannot be recycled, but it is used to do the work involved in recycling matter

Question 3

Material flow

Answer 3

Material can be used and reused, and whilst they flow through systems they can also be recycled

Question 4

Feedback

Answer 4

Mechanisms that controls the flow within a system > feedback loop

Question 5

Positive feedback

Answer 5

Exists when the feedback serves to further change the element that originally changed, in the same direction amplifies the initial change triggered by external factors making changes bigger
Destroys the stability within a system

Question 6

Negative feedback

Answer 6

Dampens down or suppresses system changes promoted by external factors
Maintains/regulates system stability by self-regulation (homeostasis)

Question 7

Homeostasis

Answer 7

Look up

Question 8

Gaia hypothesis

Answer 8

Earth is maintained by a grand homeostatic system, plant and animal species have adapted to the chemical properties of the environment as a cause-effect relationship

Question 9

Transfer

Answer 9

Normally things move through a system, a change of location