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The Process of Scientific Inquiry in Biology

Discover the essential elements of scientific inquiry in biology, including observation, hypothesis formation, experimentation, and the role of technology such as microscopes. Explore the difference between a hypothesis and a theory and learn how theories can change based on new evidence.

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The Process of Scientific Inquiry in Biology

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  1. KEY CONCEPTScience is a way of thinking, questioning, and gathering evidence.

  2. Like all science, biology is a process of inquiry. • Scientists make careful and systematic observations. • Scientists record observations as data. • Scientists form a hypothesis as a possible answer to a     question. • Scientists test their hypotheses and analyze their data.

  3. Biologists use experiments to test hypotheses. • Observational studies allow scientists to describe a phenomenon.

  4. Experimentals allow scientists to determine what causes a phenomenon.

  5. Experimental studies allow scientists to determine what causes a phenomenon. • Independent variables are manipulated. • Dependent variables are observed and measured. • Constants are conditions that are kept the same.

  6. A theory explains a wide range of observations. • Theories explain a wide range of observations and experimental results. • A theory is supported by a wide range of scientific evidence. • Theories can change based on new evidence.

  7. Essential Questions • What are the different elements of scientific inquiry? • What’s the difference between a hypothesis and a theory?

  8. Biologist tools and Technology • Microscopes • Light microscopes • Magnifies objects 1500x’s their size

  9. Biologist tools and technology • Electron Microscope • Beams magnify objects • Enlarges objects 100,000x’s their actual size • 2 Types

  10. Biologist tools and technology • Scanning Electron Microscope • Scans the surface of a specimen • Transmission Electron Microscope • Transmits electrons through a thin slice of a specimen

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