Materials:
- 1/2 cup vinegar
- 1/2 cup baking soda
- 1 teaspoon fluorescent paint or glow-in-the-dark paint
- Dish soap (optional)
- Blacklight
- Pan for containing the mess
- Tall glass (We used a 16 ounce water glass.)
Directions:
- Put the tall glass inside the pan. Mix the baking soda and fluorescent paint in the glass.
- Optional: Add a squirt of dish soap to the mixture. This will make the eruption move slower and last longer.
- Turn on the black light.
- Add vinegar to the glass and watch the eruption!