8652032
The Water Cycle as a
System
- Inputs - Components allowing things
to enter the system
- Precipitation - Water falling from the atmosphere
to the ground. Takes the form of Rain. Snow, Sleet
or Hail
- Precipitation - Water falling from the atmosphere
to the ground. Takes the form of Rain. Snow, Sleet
or Hail
- Outputs - Components allowing things to leave the system
- Transpiration - The process by which
plants absorb water through the roots and
then give off water vapor through pores in
their leaves.
- Evaporation - The process by which water
changes state from a liquid to a gas (water
vapour). This occurs when the water if
heated, causing the droplets to become
vapour.
- Channel Flow - The downhill movement
of water within rivers.
- Transpiration - The process by which
plants absorb water through the roots and
then give off water vapor through pores in
their leaves.
- Stores - Components holding something
within the system
- Aquifer - A body of permeable
rock which containing
groundwater.
- Vegetation
- Clouds - Created when water droplets are allowed to
form around a cloud condensation nuclei
- Surface Storage;
Lakes, Rivers
- Soil Moisture - Water that is
held in the spaces between
soil particles.
- Aquifer - A body of permeable
rock which containing
groundwater.
- Flows - Components allowing things
to move through the system
- Throughflow - Water flowing
through the soil
- Groundwater flow - Water
flowing through rocks
- Surface Run-off - Water, from rain, snowmelt,
or other sources, that flows along the surface
- Infiltration - The process by which
water on the surface enters the soil.
- Throughflow - Water flowing
through the soil
- Dynamic Equilibrium - A state of balance
between continuing processes
- Feedback
Mechanisms
- Positive Feedback Loop - Sequence of
events amplifying a change. Promotes
instability
- Climate Change causes permafrost to
melt, triggering the release of the
greenhouse gas Methane.
- Climate Change causes permafrost to
melt, triggering the release of the
greenhouse gas Methane.
- Negative Feedback Loop -
Sequence of events dampening a
change. Promotes stability
- Increased temperatures promote plant
growth, increasing rates of
photosynthesis which removes CO2 from
the atmosphere.
- Increased temperatures promote plant
growth, increasing rates of
photosynthesis which removes CO2 from
the atmosphere.
- Positive Feedback Loop - Sequence of
events amplifying a change. Promotes
instability
Want to create your own Mind Maps for free with GoConqr? Learn more.