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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.

In the picture

  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

Quiz: The Water’s Round Trip (Age 8)

  1. The sun shines on the sea. What happens to some of the water?

    • It turns into invisible vapour and rises into the sky
    • It sinks down to the bottom of the sea
    • It freezes into ice on the surface
  2. What is a cloud actually made of?

    • Soft white cotton
    • Tiny drops of water that cooled high in the sky
    • Smoke from the ground
  3. Rain falls on a hill far from the sea. How does that water usually get back to the sea?

    • It waits on the hill until the sun sends it back
    • It flows downhill into rivers that run to the sea
    • It stays in the ground forever

The answers, each with its explanation, are in the app. This lesson has left the free week, so its quiz is part of the subscription.

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Science, Age 8