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20 January, 05:44

Fast question! Tommy is planning his science fair project. He wants to measure the rate of photosynthesis in plants that live in fresh water. Is this an example of a scientific investigation or an experiment?

An experiment because it shows a cause and effect relationship

An experiment because it does not ask a testable question

An investigation because it can be easily done in natural settings

An investigation because there is a control group

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  1. 20 January, 05:58
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    I believe it is the first one: An experiment because it shows a cause and effect relationship
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