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Picker · Answer 1 · 2020-11-17T14:45:38+0000

most scientific investigations begin with observations and lead to questions. the act of noting and percieiving objects or events by using the senses. ... scientists conduct controlled experiments or perform studies in order to test a hypothesis.

Han · Answer 2 · 2020-11-19T05:48:12+0000

most scientific investigations begin with observations and lead to questions. scientists conduct controlled experiments or perform studies in order to test a hypothesis.

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