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Lesson 3 & 4 Vocab

Questiona system in which mattAnswer
the principle that the total amount of matter remains the same, regardless of any chemical or physical change. law of conservation of mass
a system in which matter can enter from or escape into its surroundings. open system
a system in which no matter is allowed to enter or leave. closed system
the act of a compound breaking down into similar products. decomposition
created or manufactured by humans; not found occurring in nature. synthetic
anything naturally occurring in the environment that humans use. natural resource
a long chain of molecules made up of repeating units. polymer
to make an exact copy replicate
Created by: tori.carmichael
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