Water Cycle

Views:
 
Category: Education
     
 

Presentation Description

it's free.... just click download!!!

Comments

Presentation Transcript

PowerPoint Presentation: 

The Water Cycle

PowerPoint Presentation: 

1. Water evaporates 2. Water vapour is carried up into the air. 3. Water vapour condenses to form clouds 4. Rain water falls to form rivers. 5. Rivers flow into the sea Working Of Water Cycle

PowerPoint Presentation: 

A B D C A. SNOW AND ICE ON MOUNTAIN TOPS MELT AND FLOW INTO RIVERS C. WATER FROM RESERVOIRS IS CLEANED AT WATER WORKS AND PUMPED TO OUR HOUSES B. RESERVOIRS ARE MADE TO STORE WATER FOR OUR USE D. WASTE WATER FROM OUR HOUSES IS CLEANED AT THE SEWAGE WORKS AND PUMPED BACK INTO THE SEA

PowerPoint Presentation: 

E vapor ation Sun heats water Liquid water changes to gas ( vapor ) Water vapor rises with warm air

Humidity: 

Humidity Amount of water vapor, or moisture in the air Changes with temperature Warm air holds more moisture than cold air Cold Air Warm Air

PowerPoint Presentation: 

Water vapor cools Tiny water droplets or ice crystals form Get bigger and heavier

PowerPoint Presentation: 

Powerpoint Templates All the different forms of water that fall from the sky. Precipitation

PowerPoint Presentation: 

Air can’t hold up heavy water droplets or ice crystals They begin to fall

PowerPoint Presentation: 

Types of Precipitation Rain Liquid Air temperature above 32 degrees Fahrenheit Snow Solid Air temperature below 32 degrees Fahrenheit Hail Solid Formed in clouds Winds carry frozen drops higher Layers of ice are added Repeats Sleet Mixture Air temperature just above freezing

PowerPoint Presentation: 

Measuring Precipitation Rain gauge Open container that collects precipitation Scale on side of container shows how much has fallen

The Water Cycle: 

The Water Cycle Runoff Water that does not soak into the ground Runs downhill into puddles, streams, rivers, or lakes Then the whole cycle begins again