Maybe you'd like to just hear about one topic for a while. We understand. So today, let's just watch some videos about Matter. What is matter? What are particles? And why is this important to know? Did you know that coal can turn into diamonds? Or that some materials don't behave the way we think they should? In this compilation, Sabrina helps us understand some of these things. Watch More Crash Course Kids: www.youtube.com/user/crashcoursekids Want to find Crash Course elsewhere on the internet? Crash Course Main Channel: www.youtube.com/crashcourse Facebook - www.facebook.com/YouTubeCrash... Twitter - www.twitter.com/thecrashcourse Tumblr - thecrashcourse.tumblr.com Credits... Producer & Editor: Nicholas Jenkins Cinematographer & Director: Michael Aranda Host: Sabrina Cruz Script Supervisor: Mickie Halpern Writer: Kay Boatner and Jen Szimanski Executive Producers: John & Hank Green Consultant: Shelby Alinsky Script Editor: Blake de Pastino Thought Cafe Team: Stephanie Bailis Cody Brown Suzanna Brusikiewicz Jonathan Corbiere Nick Counter Kelsey Heinrichs Jack Kenedy Corey MacDonald Tyler Sammy Nikkie Stinchcombe James Tuer Adam Winnik