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Chemistry, 07.10.2019 03:30 dl34574

All of the following are possible sources of error in a scientific investigation except for

1- discovering new variables as the experiment proceeds

2- not controlling all the variables in the experiment

3- adding research resources during an investigation

4- measuring the materials of an experiment incorrectly

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Answers: 3

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All of the following are possible sources of error in a scientific investigation except for
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