STEAM at Home: Storm in a Glass

Make a really cool looking storm in a glass, and learn a little about clouds.


  • Tall Glass
  • Water
  • Shaving Cream
  • Food Coloring
  • Small Bowl
  • Spoon

Fill the glass half full with water. Add a thick layer of shaving cream on top so that the glass is about ¾ full. Smooth down the top of the shaving cream so that it is nice and flat. Mix the food coloring with a half cup of water in a small bowl. Using a spoon, pour the food coloring and water mixture on top of the shaving cream. Keep going one spoonful at a time and see what happens.

Questions to ask yourself:

  • What could you do differently to change the results?
  • What would happen if you used more or less ingredients?
  • What other ingredients could you use?
  • How could the results be different with something similar to shaving cream?
  • What would happen if you changed the temperature of the water or shaving cream?

What Happened in the Glass:
Clouds can hold a lot of water, but there comes a point when the clouds can’t hold any more, and that’s when we get rain, sleet, or snow. The temperature of the air and water in the clouds can affect how much water the clouds can hold as well. The shaving cream acted as our clouds. As we slowly added colorful water to the shaving cream (clouds), there came a point when the shaving cream couldn’t hold any more water, and it rained down into our glass.

I did not come up with this myself, I found this experiment on Science Fun. You can visit their site to learn more and to see other experiments to try at home.

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