Observable vs Total Weight Changes
5th Grade Science · Flashcards
5TH GRADE SCIENCE · FLASHCARDS
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QUESTION
What is the key difference between an observable change and a weight change?
QUESTION
What should you compare to decide if total weight changed during an investigation?
QUESTION
What does it mean if total weight changes in an investigation of a reaction?
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ANSWER
Matter entered or left the measured system. Weight changes only when matter crosses the system boundary.
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