LS2B - Cycles of Matter & Energy Transfer in Ecosystems

Next Generation Science Standards Life Science Disciplinary Core Idea 2B:
 Cycles of Matter and Energy Transfer
 In this video Paul Andersen explains how matter moves from the environment into living organisms and back into the environment. Food webs are used to show how matter and energy move through organisms. Ecological pyramids show that matter and energy are lost as they move from producers to consumers.