Homemade Butter

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In this activity, learners will turn cream and salt into butter—using marbles. Learners will explore how shaking up fat globules help them create homemade butter. This activity uses low cost materials and be done at home. Activity includes step-by-step instructions.

Quick Guide

Preparation Time:
Under 5 minutes

Learning Time:
10 to 30 minutes

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

Age Range:
Ages 6 - 14

Resource Type:


Materials List (per group of students)

  • 1/3 cup heavy whipping cream
  • 1/4 tsp salt
  • Marbles (appx. 6 – 7)
  • Plastic container with tight lid (screw-top is best!)
  • Strainer or dishtowel


  • Life Sciences
    • Human Body
      • Health and Nutrition
  • Physical Sciences
    • Chemistry

Informal Categories

  • Food and Cooking


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Access Rights:

  • Free access



  • All rights reserved, Carnegie Science Center, 2021

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