We've talked about food chains and how energy moves through an ecosystem, but let's take a step back and see how everything starts... and ends. Decomposers! This first series is based on 5th grade science. We're super excited and hope you enjoy Crash Course Kids! ///Standards Used in This Video/// 5-LS2-1. Develop a model to describe the movement of matter among plants, animals, decomposers, and the environment. [Clarification Statement: Emphasis is on the idea that matter that is not food (air, water, decomposed materials in soil) is changed by plants into matter that is food. Examples of systems could include organisms, ecosystems, and the Earth.] [Assessment Boundary: Assessment does not include molecular explanations.] Want to find Crash Course elsewhere on the internet? Crash Course Main Channel: www.youtube.com/crashcourse Facebook - www.facebook.com/YouTubeCrashCourse Twitter - www.twitter.com/thecrashcourse Tumblr - thecrashcourse.tumblr.com Credits... Executive Producers: John & Hank Green Producer & Editor: Nicholas Jenkins Cinematographer & Director: Michael Aranda Host: Sabrina Cruz Script Supervisor: Mickie Halpern Writer: Jen Szymanski 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