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Learn the process of organizing information with terms like hypothesis, experiment, data, theory, and law. Understand the steps of the scientific method and the importance of unbiased experimentation.
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Scientific Method • A standardized means of organizing and evaluating information to reach valid conclusions. **it’s a process! • Terms you should remember: • Hypothesis • Experiment • Data • Theory • Law
Terms expanded: • Hypothesis – an idea that explains your observations • A valid hypothesis has three characteristics • 1. Testable • 2. Unbiased • 3. Repeatable If a hypothesis satisfies these criteria and the scientific community agrees…it can be accepted as a Scientific Theory
Observation & Define Problem Propose hypothesis Design Experiment Propose new hypothesis Collect & Analyze Data Redesign experiment Unbiased? No Yes Refine hypothesis Repeat experiment Not repeatable Correct Accept as a scientific theory
General Steps for the Scientific Method • Observe • Define a problem • Hypothesis • Experiment • Collect and Analyze Data • Form a Conclusion • Scientific Theory……… • Scientific Law
Two groups in an experiment…. Control and experimental Variables – Independent vs dependent (Independent – the one the experimenter aka you changes – graphed on the x axis Dependent – changes because of the independent and is graphed on the y axis