hender100hd
hender100hd
23-08-2017
Physics
contestada
Most scientific questions are based on
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collincross
collincross
23-08-2017
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.
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kayleesampson20
kayleesampson20
23-08-2017
opinions, hypotheses, experimental data, observations
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