so I checked in with a baking and pastry expert on how you can test your baking powder to see if it’s fresh. “When properly stored, the shelf life of baking powder is actually indefinite ...

Designing a fair test to study chemical reactions requires keeping all variables the same except for the one you want to know about. In a demonstration, students see that baking powder reacts with ...

Unfortunately, if you use inactive baking powder—that is, baking powder that's gone bad—in a recipe, you're liable to end up ...

Students are shown samples of baking soda and baking powder. Students help design an experiment to test whether baking soda and baking powder, similar-looking powders, are made up of the same chemical ...