All STEM Activities

Homemade Slushies

Active Time
10-20 minutes
Total Project Time
Up to 1 day
Key Concepts
Freezing, freezing point depression
https://www.youtube.com/watch?v=Qbcfajl6i10

Introduction

Do you enjoy ice-cold drinks? A slushy is about as close as you can get to liquid ice: colder than water, but more drinkable than ice! Using some common household items, a little bit of patience, and the help of science, you can make this delicious, sweet drink at home. Try the activity, and you will be rewarded with a delightful treat!

Credits

Sabine De Brabandere, PhD, Science Buddies
This activity is not appropriate for use as a science fair project. Good science fair projects have a stronger focus on controlling variables, taking accurate measurements, and analyzing data. To find a science fair project that is just right for you, browse our library of over 1,200 Science Fair Project Ideas or use the Topic Selection Wizard to get a personalized project recommendation.
Next: Materials

Materials

  • Water
  • Table salt
  • Measuring cups
  • Small mixing bowl
  • Four zipper-lock sandwich bags
  • Freezer
  • Gloves or a towel
  • Two smoothie shakers or 32 oz. food containers with lid, preferably translucent or transparent.
  • Fruit juice, e.g. orange, apple, or grape juice. Do not use a light version.
  • Optional: Food coloring
  • Optional: Thermometer that can go to -12°C or 10°F
  • Optional: Soda or fruit-flavored syrup.
    Materials needed for this slushy science activity.
Next: Instructions

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Active Time
10-20 minutes
Total Project Time
Up to 1 day
Key Concepts
Freezing, freezing point depression
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