What does a scab on your knee & Captain America have in common?
Podcast:Who Smarted? - Educational Podcast for Kids Published On: Wed Oct 20 2021 Description: Why do scabs form? What are scabs made of? Should you pick at your scabs? For free home activities sign-up at www.WhoSmarted.com See Privacy Policy at https://art19.com/privacy and California Privacy Notice at https://art19.com/privacy#do-not-sell-my-info.