An example of a continuous system.
A set of interrelated components working together towards some kind of process.
Helps to explain relationships.
A way of simplifying or representing complex systems.
The parts or substances that make up a system.
Characteristics of the elements that may be perceived and measured.
Associations that occur between elements and attributes.
The edge of a system.
Elements entering a system.
Elements being stored in a system.
Elements moving around the system.
Elements leaving the system.
There is a balance between both inputs and outputs.
Where there are both inputs and outputs.
Energy and matter can be transferred across boundaries.
Where there are no inputs or outputs in a system.
Matter is confined to the system, but energy may enter and exit.
The effects of an action are amplified by other knock on effects.
The effects of a action are nullified by its knock on effects.
There are no interactions beyond its boundaries.
Made of a chain of open systems where the output from one system forms the input of another.
The layer of gas between the Earth's surface and space, held in place by gravity.
The outermost part of the Earth.
It includes the crust and the upper parts of the mantle.
Includes all the water on Earth.
May be in liquid form, in solid form or in gaseous form.
It may be saline or fresh.
Where living things are found.
All the living parts of the Earth.
The parts of system where it is cold enough for water to freeze.
The assessment of the size or strength of something.
Can be in any form, such as rain, hail, sleet or snow.
The process by which liquid water changes into a gas.
This requires energy which is provided by the sun and aided by the wind.
The process by which water vapour changes to liquid water.
The lowest part of the atmosphere.
Where weather events occur.
Inter-Tropical Convergence Zone.