OCR A Level: Water Cycle Key Terms

What is meant by an 'open system'?

• A system with inputs and outputs to other systems

• A system with no inputs or outputs

• A system with outputs to other systems but no inputs

• A system with inputs to other systems but no outputs

What is meant by a 'closed system'?

• A system with inputs and outputs to other systems

• A system with no inputs or outputs

• A system with outputs to other systems but no inputs

• A system with inputs to other systems but no outputs

On a global scale the water cycle is an open system

• True

• False - it is a closed system

On a local scale the water cycle is an open system

• True

• False - it is a closed system

What is an 'input'?

• Material moving from the system to the outside

• The links of relationships between the components (parts) of the system

• Material moving into the system from the outside

• The power or driving force of the system

• An individual element or part of a system

What is an 'output'?

• Material moving from the system to the outside

• The links of relationships between the components (parts) of the system

• Material moving into the system from the outside

• The power or driving force of the system

• An individual element or part of a system

What is the 'energy' in a system?

• Material moving from the system to the outside

• The links of relationships between the components (parts) of the system

• Material moving into the system from the outside

• The power or driving force of the system

• An individual element or part of a system

What is a 'store/component' in a system?

• Material moving from the system to the outside

• The links of relationships between the components (parts) of the system

• Material moving into the system from the outside

• The power or driving force of the system

• An individual element or part of a system

What is are 'flows/transfers' in a system?

• Material moving from the system to the outside

• The links of relationships between the components (parts) of the system

• Material moving into the system from the outside

• The power or driving force of the system

• An individual element or part of a system

Which is an example of an input in the water cycle?

• Groundwater

• Precipitation

• Evaporation

• Sun

• Transpiration