Bubbling Lava Jar
A fun and educational science experiment that demonstrates the principles of density and chemical reactions using everyday materials to create a visually stunning lava effect.
Ingredients
Main Ingredients
- 1 container Clear glass or plastic container (jar or bottle) Choose a suitable size for the experiment.
- 1/3 full Water Fill the container about one-third full.
- sufficient Vegetable oil (or any light oil) Use enough to nearly fill the container on top of the water.
- a few drops Food coloring (various colors) Use different colors for vibrant effects.
- 1 tablespoon Baking soda Mix with a bit of water to create a paste.
- 1/4 cup Vinegar Pour slowly to initiate bubbling action.
- optional Glitter or small decorations For added fun and decoration.
Instructions
Preparation
- Fill your container about one-third full with water.
- Add a few drops of food coloring to the water for a vibrant effect and stir gently.
Creating the Lava Effect
- Slowly pour vegetable oil into the container until it is nearly full.
- Observe how the oil floats above the water due to its lower density.
- In a small bowl, mix a tablespoon of baking soda with a bit of water to create a paste and add it to the container.
- Pour vinegar into the container slowly.
- Watch as colorful bubbles rise, creating a lava-like effect.
Enjoy the Show
- Observe the bubbling action and add more vinegar as desired to keep the reaction going.
Notes
Customize the experiment by changing food colors. You can also use glitter for a magical touch and experiment with different sized containers. Make sure to conduct under adult supervision for younger children.