Thursday, 29 August 2013

Water Cycle & Clouds

We have been looking and learning about the Water cycle and clouds in Barrhill.

We have learnt that there are 4 parts to the water cycle -
1 - Evaporation
2 - Condensation
3 - Precipitation
4 - Collection

We looked at how the sun heats up the water from the oceans, lakes and land, causing water vapour (invisible gas) droplets to rise into the air, cooling down and condensing together to form clouds.  The clouds are then blown over the ocean by the wind and when they reach land they are forced higher still into the sky.

The higher the clouds get the colder it gets.  The tiny droplets of water condense even further causing it to become so heavy that they can not stay up there.  They fall to the ground as rain.

When the rain hits the ground it soaks into the soil, feeding plants, some water ends up in puddles and others ends up in streams, which flows into rivers and then into the ocean.

The sun heats the water again and the cycle begins all over again.

Below is a close activity that you could have a go at doing in your own time.





Water Cycle Close Activity

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