Baking soda and baking powder are not the same. Sodium bicarbonate and bicarbonate of soda are other names for baking soda. Baking powder is made of baking soda plus cream of tartar and cornstarch. Baking powder can be substituted for baking soda by tripling the amount of baking powder.
A raising agent used in cakes, biscuits and breads. Commercial baking powder contains bicarbonate of soda and tartaric acid (with a dried starch or flour to absorb any moisture during storage). When these chemicals become moist and warm they react and give off carbon dioxide, which causes foods to rise.
Baking is a technique while setting powder is a product that you use to bake and set the face. Baking differs from just setting for face with powder because more powder is used and it's left on the skin for five to ten minutes to use the heat from your body to set your makeup for a long-lasting, crease-free finish.