Most people or students use this reaction for the volcano project which is usually done at some point during a child's education. This is because after you build the diagram on the volcano, the baking soda and vinegar act as “flowing lava” exploding from the volcano. This reaction gives insight towards the different elements that bond in the baking soda and vinegar and show the reaction that occurs from these elements.
Cooking: Baking soda is sodium bicarbonate (NaHCO3) that is added to baked goods to make them rise. When you mix together the baking soda, acidic ingredient and liquid you'll get bubbles of carbon dioxide gas. Specifically, the baking soda (a base) reacts with the acid to give you carbon dioxide gas, water and salt. The reaction occurs as soon as the batter or dough is mixed, so if you wait to bake a product containing baking soda, the carbon dioxide will dissipate and your recipe will fall flat. The gas bubbles expand in the heat of the oven and rise to the top of the recipe, giving you a fluffy quickbread or light cookies.
video to help explain: (Copy and paste into search engine)
http://ed.ted.com/lessons/the-chemistry-of-cookies-stephanie-warren
video to help explain: (Copy and paste into search engine)
http://ed.ted.com/lessons/the-chemistry-of-cookies-stephanie-warren