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Science Definition & Meaning During the experimentation stage, scientists will test their hypothesis in a laboratory setting or in the field. Such an approach ensures the scientist can definitively say what factor is responsible for any statistically significant difference observed between the control and test groups. Scientists within each field review the work of each other to ensure all research is conducted in a professional and replicable manner that is free of bias. It can take many years for scientists to publish their work in a peer-reviewed journal (e.g., Proceedings of the National Academy of Sciences, The New England Journal of Medicine). If fellow scientists find flaws with the research design or believe the researcher made unfounded conclusions, the peer-review team will direct the researcher to correct those mistakes (e.g., re-conduct a part of the experiment). Biological science addresses all processes involving organic life on Earth (e.g., biology, botany, medicin