======Fizzy Painting====== **Materials: **{{$demo.materials_description}}\\ **Difficulty: **{{$demo.difficulty_description}}\\ **Safety: **{{$demo.safety_description}}\\ \\ **Categories:** {{$demo.categories}} \\ **Alternative titles:** Baking Soda Fizzy Paint, Fizzy Art with Vinegar and Baking Soda ====Summary==== {{$demo.summary}} ====Procedure==== - Place cardstock or watercolor paper on a tray or baking sheet. - In small cups, mix baking soda with a few drops of liquid watercolors or food coloring. - Add a small amount of water and stir to make a thick, paintable paste. - Use paint brushes to paint designs and shapes onto the paper. - Encourage mixing of colors and different brush strokes. - Fill pipettes with vinegar. - Drip vinegar onto the painted areas and observe the bubbling and color movement. ====Links==== Baking Soda Painting with Robin - Marbles Kids Museum: {{youtube>-a054kVeZIA?}}\\ Fizzy Painting Process Art - ScholarsChoice: {{youtube>AVmZc4Nhxh0?}}\\ 📄 Fizzy Art – Baking Soda Paint - Typically Simple: [[https://typicallysimple.com/fizzy-art-baking-soda-paint/]]\\ 📄 Vinegar Baking Soda ~ Paint Experiment - Housing a Forest: [[http://www.housingaforest.com/vinegar-baking-soda-paint-experiment/]]\\ ====Variations==== * Try thicker or thinner baking soda mixtures to compare bubbling effects. * Create themed artwork such as rainbows, fireworks, or abstract designs. * Scale up to a larger sheet of paper for group demonstrations. ====Safety Precautions==== * Safety glasses recommended to protect eyes from splashes. * Use trays to contain spills and reduce mess. * Avoid contact with eyes and mouth. * Wash hands after the activity. * Adult supervision required for young children. ====Questions to Consider==== * What causes the bubbling when vinegar is added? (An acid-base reaction produces carbon dioxide gas.) * Why do the colors spread and mix during the reaction? (Gas bubbles push the liquid pigments outward.) * How does changing the amount of vinegar affect the reaction? (More vinegar produces more bubbles until the baking soda is used up.) * Is this a physical change or a chemical change? (Chemical change, because new substances are formed.)