What is Science? - sisd.net

What is Science? - sisd.net

What is Science? What is Science? Science = Latin to know Inquiry is at the heart of science. Inquiry: search for information and explanation Two main processes: 1. Discovery science 2. Hypothesis-based science Discovery Science Describes

nature through observation and analysis of data Data = recorded observations Qualitative and quantitative Inductive reasoning: derive generalizations based on specific observations Hypothesis-Based Science Hypothesis: makes predictions that can be tested by recording more observations or experiments

AP Biology: If , then because Results can either support or refute the hypothesis Not My hypothesis is correct The Myth of the Scientific Method Published research articles follow the steps of the textbook scientific method Most scientific inquiries dont follow this structured form Scientists can be working with the wrong hypothesis and have to redirect research Discovery science - contributes to understanding of nature without using the scientific method

Experiments Hypothesis Use control and experimental groups Design: Independent variable (IV) Dependent variable (DV) Control Constants

# Trials Hypothesis / Theory / Law Theory Hypothesis Explanation to specific question Tested by experiment or continued observation

Can be disproven, but not cant proven to be true Summarizes group of hypothesis supported by repeated testing Broader in scope New hypotheses can be generated

from it Supported by massive body of evidence Scientific Law Statement of fact Explains things, but doesnt describe them Generally accepted

to be true and universal Basis for scientific method Science Practices for AP Bio 1. 2. 3. 4. 5. 6. 7. Use representations and models to communicate and solve problems

Use mathematics appropriately Pose scientific questions to extend thinking or guide investigations Plan and implement data collection Analyze data and evaluate evidence Work with scientific explanations and theories Connect and relate knowledge across scales and domains Video clip: What is Science? HHMI Lecture (12:27-14:18)

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