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This is a highly visual demonstration that illustrates both the effects of density and chemical reactions. Like a density column, volcano eruption, and Alka-seltzer reaction all in one, learners will observe layering between immiscible liquids, a volcanic eruption from salt crystals and a lava-lamp bubble effect caused by Alka-seltzer. This instruction guide includes a helpful video illustrating each step of the demonstration as well as an explanation of how the substances in the glass are interacting with each other. Note: this activity calls for beer, but any other light-colored fizzy drink will work as well.
- Under 5 minutes
- 5 to 10 minutes
- $1 - $5 per group of students
- Ages 4 - adult
- Activity, Demonstration
- English
Quick Guide
Materials List (per group of students)
- pint glass
- lager or other fizzy drink
- vegetable oil
- food coloring
- Alka-Seltzer tablet
- salt
- stirrer
Subjects
-
Physical Sciences
-
Chemistry
- Chemical Reactions
- Solutions
-
States of Matter
- Solids
- Liquids
- Gases
- Changes of Phase
-
Structure and Properties of Matter
- Volume and Density
-
Chemistry
-
The Nature of Science
-
The Scientific Process
- Conducting Investigations
-
The Scientific Process
Informal Categories
- Food and Cooking
- Toys
Audience
To use this activity, learners need to:
- see
- see color
Learning styles supported:
- Involves hands-on or lab activities
Other
Components that are part of this resource:
This resource is part of:
Access Rights:
- Free access
By:
Rights:
- All rights reserved, Institute of Physics,