Homemade Slushies

Here's how.

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.