Did you know?
The reason we get fluffy biscuits (or any quick bread) is because of a chemical reaction! The baking soda is a base (has a high pH), the baking powder contains some baking soda with a little acid (acids have a low pH). Then we usually add some kind of acid (buttermilk in this recipe). When the acid and base are allowed to react with each other, carbon dioxide gas (bubbles) is produced which gets trapped in the dough, kind of like a bunch of balloons, and makes the biscuits rise!