The water cycle

1. The water cycle By: Marian Kim

2. Many parts of cycle • The water cycle – describes the circulation of water on, above, and below Earth’s surface. • This cycle is made up of a few main parts: -evaporation (and transpiration) -condensation -precipitation -collection • Evaporation:   Evaporation is when the sun heats up water in rivers or lakes or the ocean and turns it into vapouror steam. The water vapouror steam leaves the river, lake or ocean and goes into the air. • Condensation:    Water vapourin the air gets cold and changes back into liquid, forming clouds. This is called condensation. • Precipitation:  Precipitation occurs when so much water has condensed that the air cannot hold it anymore.  The clouds get heavy and water falls back to the earth in the form of rain, hail, sleet or snow. • Collection:  When water falls back to earth as precipitation, it may fall back in the oceans, lakes or rivers or it may end up on land.  When it ends up on land, it will either soak into the earth and become part of the “ground water” that plants and animals use to drink or it may run over the soil and collect in the oceans, lakes or rivers where the cycle starts

3. How the water cycle works? • Condensation is the transition of the water vapour into liquid water. Tiny water droplets suspended in the atmosphere in the clouds. • Precipitation occurs when water falls as rain, snowfall, or hail. • Infiltration occurs when surface water move downwards into the soil: Percolation involves the downward movement of water through soil and permeable rock. • Most precipitation flows into other bodies of water as surface runoff. • Ground water flows slowly downhill through porous rock and seeps out into bodies of water or come out as springs. • Evaporation is the transition of liquid water into water vapour. • Transpiration is the evaporation of water from the leaves of plants.

4. The water cycle song video • - Water Cycle

5. Thanks for watching 