 |
26% off (Sale price $88.50, Reg. Price $120.00) :: Choice of: An 8-week after-school program for one An 8-week after-school program for twoThe program runs February 7-April 11 2017 on Tuesdays from 5-6p.m. Please find the list of classes below: Week 1: Observing Like Scientists Week 2: Chemical Reactions Week 3: Acids and Bases Week 4: Density of Matter Week 5: Magnetic Race Week 6: Light in Action Week 7: Amazing Air Week 8: Dry IceBaking Soda vs. Baking Powder: Two Ways to Blow Baked BubblesWhat distinguishes baking soda from baking powder, and which one is more delicious? Impress your classmates by gently explaining the difference with Groupon’s help.Without baking soda or baking powder, most baked goods would be dense, flat, and gummy. Both substances are leaveners, meaning they create carbon dioxide (CO2) bubbles that make cakes, breads, and cookies rise. And both are odorless, white powders that contain sodium bicarbonate. So, whats the difference? Baking soda is simply a fun nickname for sodium bicarbonate (NaHCO3); it contains nothing else. Sodium bicarbonate only produces carbon dioxide when it reacts with an acid, so recipes that use baking soda must also contain acidic ingredients such as lemon, yogurt, buttermilk, or even unsweetened natural cocoa powder. Baking soda starts producing carbon dioxide as soon as it’s mixed with wet, acidic ingredients, so it’s important to bake right away before the bubbles pop and their precious gases escape. (For a dramatic illustration of this action, consider the classic childhood science project of blending baking soda and vinegar to make a volcano overflow.)Baking powder, on the other hand, is a mixture of sodium bicarbonate, powdered acid salt (which will often show up as a sulfate or phosphate on the ingredient label), and cornstarch. Since the acid needed to produce carbon dioxide is already mixed in, baking powder can be used in recipes that don’t contain other acidic ingredients or when you want to make a working model of a long-dormant volcano. Most baking powder is labeled “double acting,” which means tha
|
In addition to coupons, we offer tens of thousands of deals in the following spaces:
Drop us a line to recommend improvements. Thanks.
Note: We may earn a commission when you utilize one of our coupons to make a purchase.
