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In this activity, learners explore the concepts of density and basic chemical reactions as they create a homemade lava lamp effect using water, oil, food coloring, and Alka-Seltzer tablets. Step-by-step instructions with photos, an explanation of the science behind the activity, discussion questions, and suggested activity extensions are included.
- Under 5 minutes
- 10 to 30 minutes
- $5 - $10 per student
- Ages 6 - 14
- Activity
- English
Quick Guide
Materials List (per student)
- Plastic bottle
- Funnel
- Vegetable oil
- Water
- Food colouring
- Alka-Seltzer tablet
Subjects
-
Physical Sciences
-
Chemistry
- Chemical Bonding
- Chemical Reactions
- Acids and Bases
-
Structure and Properties of Matter
- Volume and Density
-
Chemistry
Informal Categories
- Arts and Crafts
- Science Festivals Activity
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- Free access
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Rights:
- All rights reserved, Science Museum Group, 2020