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17 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Inputs |
When matter or energy is added to the system |
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Outputs |
When matter or energy leaves the system |
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Stores |
Where matter or energy builds up |
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Flows |
When matter or energy moves from one store to another |
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Boundaries |
The limits of the system |
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Open systems |
Both energy and matter CAN enter and leave an open system-there are inputs and outputs of both |
Drainage basins are open systems- energy from the sun enters and leaves the system. Water is input as precipitation and output as river discharge into the sea |
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Closed systems |
Matter CAN'T enter or leave a closed system- it can only cycle between stores Energy CAN enter and leave a closed system- it can be input or output |
The carbon cycle is a closed system- energy is input (from the sun) and output ( by respiration) but the amount of carbon on Earth stays the same because there are no inputs or outputs |
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Positive feedback |
Mechanisms amplify the change in the inputs or outputs
This means the system responds by increasing the effects of the changr, moving the system even further from its previous state |
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Negative feedback |
Mechanisms counteract the change in the inputs or outputs
This means that the system responds by decreasing the effects of the change, keeping the system closer to its previous state |
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Crysosphere |
Includes all parts of the Earth system where its cold enough to freeze water |
Glacial landscapes |
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Lithosphere |
Is the outermost part of the Earth. Include the crust and the upper parts of the mantle |
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Biosphere |
Is the part of the Earths systems where living things are found. Includes all the living parts of the Earth |
Plants animals birds fungi insects and bacteria |
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Hydrosphere |
Includes all of the water on Earth. It may be liquid form, soild form or gas form. It can be saline or fresh |
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Atmosphere |
Is the layer or gas between the Earths surface and space, held in place by gravity |
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Peak discharge |
Is the highest point on the graph, when river discharge is at its greatest |
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Lag time |
This is the delay between peak rainfall and peak discharge. This delay happens because it takes time for the rainwater to flow into the river. A shorter lag time can increase peak discharge because more water reaches the river during a shorter period of time |
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Carbon sequestration |
An umbrella term used to describe the long-term storage of carbon in plants, soils,rock formation and oceans
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