Scientist

A scientist systematically investigates the natural or social world using observation, experimentation, and evidence-based reasoning. Scientists develop and test explanations that can be revised in light of evidence.

Scientific method: A systematic approach to asking questions, gathering evidence, testing explanations, and revising conclusions. It describes the recurring practices scientists use to investigate claims.
Evidence: Information that supports or challenges a claim or explanation. Scientific conclusions depend on evidence that can be examined and evaluated.
Field research: Research conducted in natural or real-world settings rather than solely in controlled environments. Field scientists study phenomena where they occur, often alongside laboratory work.
Marie Curie: A physicist and chemist who pioneered research on radioactivity and won Nobel Prizes in two sciences. Her research illustrates how sustained investigation can establish a new field of study.
Science and technology: Interacting domains in which scientific knowledge informs technological development and technology enables research. Scientific findings can become tools and technologies that alter everyday life.
Hypothesis: A proposed explanation or prediction that can be evaluated through evidence. Scientists formulate testable hypotheses to guide investigations.
Scientific theory: A well-supported, broad explanation of natural or social phenomena that integrates evidence and testable predictions. Theories are developed and refined through sustained scientific investigation.
Laboratory: A workspace equipped for controlled investigation, measurement, and experimentation. Laboratories allow scientists to isolate variables and use specialized instruments.
Ibn al-Haytham: A medieval Arab scholar whose work on optics emphasized experimentation and systematic testing. His investigations exemplify experimental reasoning in the history of science.
Science communication: The communication of scientific knowledge and processes among researchers and with wider publics. Clear communication helps explain evidence, uncertainty, and the limits of scientific conclusions.

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