Sparkling Color Fireworks in a Jar
A mesmerizing, colorful science experiment and craft that creates dazzling fireworks effects in a jar using simple household ingredients—perfect for kids, parties, or a calming solo activity.
Equipment
- Clear glass or plastic jar (12-16 oz)
- Separate bowl
Ingredients
Ingredients
- 0.75 cup water room temperature
- 0.5 cup vegetable oil
- food coloring various colors such as red, blue, yellow, green, purple
- a small pinch fine glitter silver, holographic, or iridescent
- 1 tablet Alka-Seltzer broken into small pieces
Instructions
- Step 1: Fill the jar with ¾ cup of room temperature water. Pour gently to avoid splashing or bubbles.
- Step 2: In a separate bowl, pour ½ cup of vegetable oil. Add several drops of different food coloring into the oil without stirring completely.
- Step 3: Sprinkle a small pinch of fine glitter into the colored oil mixture and mix gently.
- Step 4: Slowly pour the colored oil mixture into the jar of water, pouring against the side to keep layers separate. The oil will float on top.
- Step 5: Break the Alka-Seltzer tablet into small pieces.
- Step 6: Drop one piece of Alka-Seltzer at a time into the jar and watch bubbles carry colored oil droplets down, creating a fireworks effect.
- Step 7: Wait for the liquid to settle before adding more pieces to extend the effect and enjoy the colorful sparkling display.
Notes
This project is quick and easy, perfect for kids with adult supervision. Use a tall clear jar for best effect. Store the jar tightly sealed at room temperature and shake gently before use. Try substitutions like baby oil or neon food coloring for different effects. Always check for leaks before gifting.