the water cycle

1) almost all of the water in earth are found in oceans and this is salt water.

2) energy from the sun causes the water to evaporate from the surface of the sea.

3) the water vapour now travels into the air and cools down.

4) when it cools the water vapour condenses to form clouds.

5) the water in clouds then falls to the ground as precipitation ( contains rain, snow, hail and sleet.

6) all demos of precipitation contains fresh water in other words this water does contain salt.

7) once the water hits the ground some of it evaporates back into the atmosphere as water vapour.

8) some of the water passes through rocks and forms aquifers.

9) and a lot of the water forms rivers or streams.

10) the water in rivers and streams eventually drains back into the sea.

Living organisms also have a role in the water cycle

—> plants take up water in their roots, this water moves up the plant in the xylem and passes out of the leaves through stomata as water vapour. This called transpiration.

—> animals take in water through drinking and in their food , animals release water in their urine , in their faeces and when they exhale,