TOPIC: WATER CYCLE (Hydrological Cycle)

Name : M.Rizwan Reg No: BSCT01123025Class : Cv.6.BPresented To: Sir Hassan THE UNIVERSITY OF LAHORE

The circulation of the earth's water, in which water evaporates from the sea into the atmosphere, where it condenses and falls as rain or snow,returning to the sea by rivers or returning to the atmosphere by transpiration Also called hydrologic cycle

water cycle:

THE WATER CYCLETHE WATER CYCLE

EVAPORATION

CONDENSATION

PRECIPITATION

SURFACE RUNOFF

INFILTRATION

TRANSPIRATION

Liquid change into gas

Water vapor turning to liquid

Water flowing on the surface of the land,(Rain,Snow,Hail)

Plants are needed

Water absorbing into the soil

Liquid changing states to a gas

Draw lines to connect the parts of the water cycle to a description of the part

EVAPORATIONEVAPORATION

Water changing states to a gas (water vapor)

Heat is needed and speeds up the process

Greater surface area speeds up the process

Less humid air evaporates quicker

The sun EVAPORATES the water from the hydrosphere. Evaporation means turning from liquid state to a gas state.

Water is now water vapor, an invisible gas

EVAPORATES QUICKLY EVAPORATES SLOWLY

Write a “Q” on the picture if you think it will evaporate quickly. Write an “S” if you think it will evaporate slowly.

Sunny Day

Cloudy DaySmall surface area

Large surface area

Dry air

Humid air

CONDENSATIONCONDENSATION

Water changing from a gas to a liquid!!!

Occurs when water vapor touches a cool surface.

Clouds form during condensation

PRECIPITATIONPRECIPITATION

RAINRAIN

PRECIPITATIONPRECIPITATION

SNOWSNOW

PRECIPITATIONPRECIPITATION

HAILHAIL

SURFACE RUNOFFSURFACE RUNOFF

WHAT IS IT?Water flowing on the surface of the land

SURFACE RUNOFF IS MORE LIKELY TO OCCUR IN…

SURFACE RUNOFF IS MORE LIKELY TO OCCUR IN…Urban Areas Agricultural Areas

QuickTime™ and aTIFF (Uncompressed) decompressor

are needed to see this picture.

The correct answer is…Urban areas

WATER CANNOT ABSORB INTO CONCRETE. IT HAS TO RUNOFF.

URBAN AREAS HAVE A LOT OF CONCRETE

If the rainfall is extremely intense, the surface runoff becomes a flash flood.

INFILTRATIONINFILTRATION

Infiltration is when water absorbs into the soil by seeping into pore spaces in the soil and rock

INFILTRATION IS MORE LIKELY TO OCCUR IN…INFILTRATION IS MORE LIKELY TO OCCUR IN…Urban Areas Agricultural Areas

QuickTime™ and aTIFF (Uncompressed) decompressor

are needed to see this picture.

The correct answer is…Agricultural Areas

Infiltration is most likely when moving over…

Infiltration is most likely when moving over…

Less porous ground…sand More porous ground…gravel

YEAH

Porous means able to absorb fluid

TRANSPIRATIONTranspiration is water evaporating through the leafs of plants.

TRANSPIRATION

The small openings on the underside of leaves are called stomata