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Lava Lamp Experiment
Objective
In this experiment, students will learn about the scientific principles: density and polarity.
Project Details
Grade Level
2nd-GradeBook
Physical Science Book OverviewUnit
Matter Unit OverviewModule
Changes in Matter Lesson ModuleMaterials
- Vegetable oil
- Clear, empty bottle
- Alka-Seltzer tablet
- Food coloring
- Pitcher of water
- Chopstick or long pencil (for stirring)
Research Question: Will the lava lamp erupt?
Experimental Procedure:
- Pour the vegetable oil into the bottle, filling it about 2/3 full.
- Fill the remaining 1/3 of the bottle with water, but leave 1 inch of space from the top.
- Add 10 or more drops of food coloring to the bottle of water and oil.
- Stir the mixture with a chopstick or long pencil.
- Break the Alka-Seltzer into 4 pieces and add a piece one-by-one to the bottle.
- Watch the lava lamp go!
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