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ch. 20-Cycles of matter

Horizontales
Liquid water changes into water vapor
Water that falls from clouds to earth's surface
Substance that can not be broken down
Set free
Nonliving thing in an ecosystem
Process that changes atmospheric nitrogen into usable compounds
Water vapor changes into liquid water
Changed from one form to another
Unicellular ortanisms without a membrane or cell nucleus-prokaryote
Verticales
Model showing the amount of energy available in each step of the food chain
Process using chemical energy in matter to mak efood
Consumer that eats the remains of dead animals
Model showing how energy flows in an ecosystems
Gasses surrounding the earth
Living things in an ecosystems
Substance that can be brokendown