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1.2. SYSTEMS AND MODELS (Knowledge and Understanding (A system is…
1.2. SYSTEMS AND MODELS
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Systems
Types of systems
Open: exchanges both matter and energy e.g. a pond, a forest etc,
Closed: exchanges energy but not matter - exist only experimentally, but earth could technically be one
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Evaluation of models
Strengths
Easier to work with, less complex than reality
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