| A | B |
|---|
| energy | the ability to cause change |
| carbon cycle | the movement of carbon from the nonliving environment into living things and back |
| law of conservation | the law that states that energy cannot be created or destroyed but can be changed from one form to another |
| matter | anything that has mass and takes up space |
| water cycle | the continuous movement of water between the atmosphere, the land, the oceans and living things |
| energy pyramid | a triangular pyramid that show's an ecosystem loss of energy, ecosystem's food chain: each row in the pyramid represents a trophic (feeding) level in an ecosystem, and the area of a row represents the energy stored in that trophic level |
| nitrogen cycle | the cycling of nitrogen between organisms, soil, water and the atmosphere |
| law of conservation of energy | the law that states that energy cannot be created or destroyed but can be changed from one form to another |
