What wonderful reactions will occur when kitchen seasonings become the protagonists of scientific experiments? The ‘little scientists’ in the sixth grade recently held a gas carnival party in the laboratory! They mixed table salt, white granulated sugar, and baking soda with water and white vinegar respectively, and used test tubes and balloons to record every moment of change. Table salt and water got along peacefully, white granulated sugar and water were as mild as usual, but the combination of baking soda and white vinegar was like pressing the bubble launch button, instantly making the small bag swell like a well-fed snowman!

The children recorded on the Phenomenon Observation Table: "Baking soda + white vinegar → bubbling + heating + gas expansion", and, through comparative experiments, they concluded that the encounter between an acidic substance (white vinegar) and an alkaline substance (baking soda) is the chemical reaction code for the birth of carbon dioxide! After class, a student excitedly said, "It turns out that there is such a cool scientific story behind the baking soda that my mother adds when making steamed buns!"