Physics
torresiris
2015-11-16 23:21:27
Most scientific questions are based on
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RayRay22
2015-11-17 01:35:11

Most scientific questions are based on observations. Scientists observe something repeatedly, and they do the experiments over and over again, so as to get to the bottom of some of their questions. 

Jonathan3t6
2015-11-17 01:36:26

opinions, hypotheses, experimental data, observations

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