What is silica gel? Why are packets of it included in lots of packaging? And what would happen if you ate it? Learn how silica gel keeps moisture at bay in this episode of BrainStuff. Learn more about advertising on the HowStuffWorks podcasts at www.howstuffworks.com/advertisers.htmAnd to learn about your ad choices when listening to podcasts, visit https://www.howstuffworks.com/privacy.htm#ad-choices
