Shake the Bag Ice Cream

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In this activity, learners will experiment with salt and ice in order to turn a bag of ingredients into ice cream. Explore the concept of lowering the freezing temperature of water in order to freeze the material inside. This activity includes step-by-step instructions as well as "What's Happening?" explinations providing the science behind the experiment.

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
5 to 10 minutes

Estimated Materials Cost:
$5 - $10 per group of students

Age Range:
Ages 6 - adult

Resource Type:


Materials List (per group of students)

  • Zipper-locking plastic bag (sandwich or snack size)
  • Zipper-locking plastic bag (gallon size)
  • Measuring cup (with spout) for ice cream ingredients
  • Vanilla extract
  • Sugar
  • Half-and-half or Milk (any variety)
  • Ice
  • Salt
  • Kitchen towel


  • Physical Sciences
    • Heat and Thermodynamics
    • Chemistry


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Access Rights:

  • Free access



  • All rights reserved, Carnegie Science Center, 2021