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7th sci vocab unit 3
Term | Definition |
---|---|
energy | is the ability to do work and enables organisms to use matter in life process |
matter | is anything that has mass and takes up space |
law of conservation of enrgy | states that energy cannot be created or destroyed |
law of conservation of mass | states that mass cannot be created or destroyed |
energy pyramid | a tool that can be used to trace the flow of energy through the ecosystem |
water cycle | the movement of water between the oceans, atmosphere, land, and livingthings |
nitrogen cycle | |
carbon cycle |