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Towering Summer Cloud

On a hot day, air near the ground warms and rises. High in the sky it cools, and its water turns into a tall dark cloud with a flat bottom.

In the picture

  1. Shimmering air above the grass: warmed air rises from the ground.
  2. Dark middle of the towering cloud: rising air has cooled high in the sky.
  3. Flat base of the cloud: tiny water drops have formed and gathered there.

Examples

  • Steam rising from a hot pavement.
  • Drops forming on the outside of a cold drink can.

Quiz: Towering Summer Cloud (Age 8)

  1. On a hot day, what does air near the ground do?

    • It stays still and dry.
    • It cools and sinks.
    • It warms and rises.
  2. What makes water vapor high in the sky turn into cloud drops?

    • It moves sideways.
    • It gets warmer up there.
    • It cools up there.
  3. What has formed and gathered at the flat base of the towering cloud?

    • Blowing dust.
    • Tiny water drops.
    • Warm dry air.

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