Hydrological cycle Flashcards
What is the hydrological cycle and what is it driven by
The hydrological cycle is the continuous movement of water as a liquid, gas and solid through the lands, ocean and atmosphere it is driven by solar energy.
List the 10 different processes in the hydrological cycle?
evaporation, condensation, virga, precipitation, sublimation, deposition, run-off and snow-melt run off, ground water, transpiration
What are different processes of evapotranspiration?
evaporation - this is when water changes from liquid to a gas
transpiration - this is when water is evaporated from the pores of the plant
sublimation - this is when snow is directly evaporated
virga - this is when precipitation is evaporated befor eit reaches the ground
What are the different processes when water is returned to earth?
precipitation - when enough liquid has condensed due to gravity the water will fall from the clouds, back to earth
deposition - When snow falls
What is condensation and describe how clouds are formed?
water vapour rises and cools
turn back into a liquid state
the latent heat is released into the atmosphere.
Clouds are formed when water vapour combine with particles of dust, salt and smoke to form water droplets.
As the water droplets coalesce they form clouds
What are the different processes water moves on the earth’s surface?
ground water - it soaks or infiltrates into the ground, it can be collected in aquifers, layers of permeable rock that hold water
run-off - when water flows across the earths surface
snow-melt run-off - when snow melts and flows across the earth’s surface