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Fizzy Rainbow Rocks

A colorful and effervescent project that combines science and creativity, perfect for kids and adults.
Prep Time 30 minutes
Total Time 2 hours
Course Crafts, Educational
Cuisine American
Servings 10 rocks
Calories 30 kcal

Ingredients
  

Main ingredients

  • 1 cup Baking soda
  • 1/4 cup Vinegar For creating the fizzing effect.
  • 1/2 cup Cornstarch
  • 4-5 tablespoons Water Adjust to achieve damp consistency.
  • various Food coloring Any colors of your choice.
  • 1 Silicone mold or ice tray For shaping the rocks.

Tools Needed

  • 1 Mixing bowl
  • 1 Baking sheet
  • 1 Spoon For mixing.

Instructions
 

Preparation

  • Set up your workspace with all materials within reach.

Mixing Dry Ingredients

  • In a mixing bowl, combine 1 cup of baking soda and 1/2 cup of cornstarch. Stir well until the mixture is uniform.

Adding Wet Ingredients

  • Gradually add 4-5 tablespoons of water to the dry mixture while stirring to achieve a damp consistency, similar to wet sand. Avoid overmixing.

Coloring the Mixture

  • Divide the mixture into separate bowls based on the number of colors you want. Add a few drops of food coloring to each bowl and mix until the desired colors are achieved.

Shaping the Rocks

  • Carefully spoon the colored mixtures into your silicone mold or ice tray and press down firmly to pack the mixture tightly.

Drying the Rocks

  • Place the filled molds on a baking sheet and let them dry for about 2-4 hours, or until they firm up.

Creating the Fizzy Experience

  • Once dry, carefully remove the rainbow rocks from the molds. Add a few drops of vinegar on top and watch the fizzy magic happen!

Notes

Experiment with different colors and shapes. Consider adding glitter for a sparkling effect.
Keyword Colorful Experiment, Crafts for Kids, DIY craft, Fizzy Rainbow Rocks, Science Project