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7 Sci Ch 2-4 vocab

7th Grade Science Chapter 2 Lesson 1 vocabulary

TermDefinition
model A representation of a complex object or process used to help people understand a concept that they cannot observe directly.
system A group of related parts that work together to perform a function or produce a result.
input Material, energy, or information that goes into a system.
process A sequence of actions in a system.
output Material, energy, result, or product that comes out of a system.
feedback Output that changes a system or allows the system to adjust itself.
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