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Frosty Glasses

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Frosty Glasses

In this activity, learners explore why frost forms. They create their own frost using a solution of ice water and salt in a glass. The salt allows the temperature of the water to drop below the normal freezing point, so that water vapor in the air turns directly into solid ice on the surface of the glass.

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
10 to 30 minutes

Estimated Materials Cost:
1 cent - $1 per student

Age Range:
Ages 8 - 14

Resource Types:
Activity, Experiment/Lab Activity


Materials List (per student)

  • Clear plastic cup or glass
  • Ice
  • Tap water
  • Paper Towel
  • 4 table spoons of salt (rock salt works best)


  • Earth and Space Science
    • Earth Processes
      • Weather and Climate
  • Engineering and Technology
    • Engineering
      • Computer Engineering
  • Physical Sciences
    • States of Matter
      • Solids
      • Liquids
      • Gases
      • Changes of Phase


To use this activity, learners need to:

  • see
  • touch

Learning styles supported:

  • Involves hands-on or lab activities


Includes alignment to state and/or national standards

Access Rights:

  • Free access



  • All Rights Reserved, COSI Columbus, ©2009


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