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The Water's Round Trip

Age 8 Science

The Water's Round Trip

The sun warms the sea, and tiny bits of water float up into the sky as invisible vapour. Up high the vapour turns back into droplets, makes clouds, falls as rain, and runs down rivers to the sea again.

Step by step

  1. The sunlit sea surface, where warm water rises as vapour
  2. The white cloud, where the vapour cools into tiny droplets
  3. The shaft of rain falling from the cloud onto the hill
  4. The river carrying the rainwater back to the sea

Examples

  • A puddle on the playground dries up after a sunny morning
  • Steam from a hot bath makes water drops on the cold mirror

Key takeaways

  • Heat from the sun turns liquid water into vapour
  • Earth's water is used again and again in the same loop

A quiz goes with this lesson

Three questions asked a few days later, to check the idea stuck — not that the picture was seen. In the app, with a subscription.

This lesson in the app

← Science, Age 8