Y9 Geography - water

Closed System

a system where no matter enters or leaves, only energy is transferred

Condensation

the process by which water vapour cools and changes into liquid water

Evaporation

when heat from the sun changes water from liquid to gas

Evapotranspiration

combined process of evaporation from surfaces and transpiration from plants

Groundwater Flow

movement of water through soil and rocks beneath the Earth’s surface

Hydrological Cycle

continuous movement of water on, above, and below the Earth’s surface

Impermeable

a surface or material that does not allow water to pass through

Infiltration

process by which water soaks into the ground from the surface

Percolation

downward movement of water through soil and rock layers

Precipitation

water released from clouds as rain, snow, sleet, or hail

Saturated

when soil or rock cannot absorb any more water

Store

a place where water is held, such as oceans, lakes, or glaciers

Surface Runoff

water flowing over land into rivers, lakes, or the sea

Throughflow

sideways movement of water through soil toward a river

Transfer

movement of water from one store to another

Transpiration

release of water vapour from plant leaves

Water Vapour

gaseous form of water present in the atmospher