Why do irons have to be hot to de-wrinkle things?

A volcano forms when the hot melted rock deep under the Earth’s crust bubbles to the surface and breaks through. Sometimes, a volcano will go from active to dormant, meaning it doesn’t erupt anymore. How does that happen? We asked geochemist Kelsey Woody to help us find the answer.Got a question of seismic proportions? Send it to us at BrainsOn.org/contact, and we’ll help find a MAGMAnificent answer!

Om Podcasten

Moment of Um is your daily answer to those questions that pop up out of nowhere and make you go… ummmmmmm. Brought to you by your friends at Brains On at APM Studios.