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In this activity, learners touch supercooled water drops with an ice crystal and trigger the water drops to freeze instantly. Learners discover that this process is used during candy making, when a single sugar crystal is used to crystallize an entire batch of sugar.
- Under 5 minutes
- 5 to 10 minutes
- $1 - $5 per student
- Ages 6 - 14
- Activity
- English
Quick Guide
Materials List (per student)
- a bowl, at least 4 inches in diameter
- clear plastic wrap
- an eye dropper
- purified water (bottled water is cleaner than tap water)
- a freezer
- a timer
Subjects
-
Physical Sciences
-
Heat and Thermodynamics
- Heat and Temperature
- Chemistry
-
States of Matter
- Solids
- Liquids
- Changes of Phase
- Structure and Properties of Matter
-
Heat and Thermodynamics
-
The Nature of Science
-
The Scientific Process
- Conducting Investigations
-
The Scientific Process
Informal Categories
- Food and Cooking
Audience
To use this activity, learners need to:
- see
- touch
Learning styles supported:
- Involves hands-on or lab activities
Other
This resource is part of:
Access Rights:
- Free access
By:
Rights:
- All rights reserved, Exploratorium,