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Colorful rainbow sugar crystal towers arranged on a plate, resembling fireworks at sunset.

Fireworks Rainbow Sugar Explosion

A colorful, fizzy science-meets-art experiment perfect for kids! Watch sugar, baking soda, and vinegar combine with rainbow hues for an exciting, sparkly eruption.
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Prep Time 5 minutes
Total Time 5 minutes
Servings: 1 activity setup
Calories: 770
Ingredients Method Notes

Ingredients
  

  • 1 cup granulated sugar
  • 1 tablespoon baking soda
  • ¼ cup warm water
  • ¼ cup white vinegar
  • food coloring red, blue, yellow, green, etc.
  • glitter or edible shimmer optional, for sparkle

Method
 

  1. Spread the sugar evenly across a shallow plate or tray to create a soft, white background.
  2. Use a dropper, spoon, or squeeze bottle to add small drops of food coloring across the sugar. Create a rainbow or experiment with color blending.
  3. In a small bowl, mix the baking soda with warm water until dissolved.
  4. Gently spoon the baking soda mixture over random spots on the sugar to initiate a gentle fizz.
  5. Slowly drizzle vinegar over the colorful areas. Watch as fizzing, swirling colors erupt into a bubbly, mesmerizing display.
  6. Sprinkle glitter or edible shimmer over the top for an extra magical touch (optional).

Notes

This is a fun, safe, and creative activity for kids of all ages. Always supervise younger children during the experiment. For a mess-free version, place the tray inside a larger bin. Try using neon or glow-in-the-dark food coloring for even more visual excitement!