Blue clouds sitting beneath a bright sky

Make a cloud in a glass

Make a cloud in a glass with our experiment.

What you will need:

  • A clear glass or similar see-through container
  • Warm water
  • Ice
  • Metal or foil dish

 

What to do:

  1. Place the ice into the metal dish.
  2. Pour a small amount of warm water into the bottom of the glass.
  3. Wait until the dish is really cold. Then place it on top of the glass.
  4. Watch the inside carefully. You should see a 'cloud' form near the top of the glass.

In the real world, clouds form when warm, moist air, like that in your glass, is cooled (your ice). When it is cooled it condenses into tiny water droplets, which appear as clouds.