Transcript Environmental Change
Change is Natural
It can be Physical or Chemical
Change can occur instantly or gradually i.e. lightning,
Frames of Reference used to Describe Change
Time – “The rain will end later tonight.”
Space – “Today it will be cloudy in the Northeast.”
Rate of Change
How quickly or slowly is the change occuring?
Rate = amount of change
X-axis is for the independent or known data.
Y-axis is for the dependent or unknown data.
Extrapolate – to extend a graph beyond its
range of data to make a prediction.
Direct Relationship – both axis increase together.
Interpreting Graphs (continued)
Inverse Relationships – one axis increases
while the other decreases.
No Relationship – one axis changes while
the other remains the same.
Graphing Change (cont.)
Cyclic Change – A series of events that
repeat at a regular interval.
Most change in nature is cyclic.
Phases of the Moon
Day & Night
A situation when change occurs, but it is in balance
(overall conditions remain the same).
The environment is normally in Dynamic Equilibrium
It can be altered in small amounts with little impact.
Deer & mice dec.
Weathering & erosion inc.
decrease in elevation
When the dynamic equilibrium (balance)
Logging without replanting.
Strip mining without land restoring.
When a substance or form of energy begins to
adversely affect people, their property, or plant
MAN MADE POLLUTANTS
Carbon emissions or Greenhouse gases