Scientific Method -A Review-. What is the Scientific Method? The Scientific Method involves a series of steps that are used to investigate a natural occurrence.

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Presentation transcript:

Scientific Method -A Review-

What is the Scientific Method? The Scientific Method involves a series of steps that are used to investigate a natural occurrence.

6 Steps of the Scientific Method Problem/Question Formulate a Hypothesis Experiment Collect and Analyze Results Conclusion Communicate the Results

Steps of the Scientific Method 1. Problem/Question: Develop a question or problem that can be solved through experimentation. 2. Formulate a Hypothesis: Predict a possible answer to the problem or question. (If/ Then/ Because)

Steps of the Scientific Method 3. Experiment: Develop and follow a procedure. Include a list of materials. The outcome must be measurable (quantifiable). 4. Collect and Analyze Results: Modify the procedure if needed. Confirm the results by retesting. Include tables, graphs, and photographs.

Steps of the Scientific Method 5. Conclusion: Restate hypothesis, were you right or wrong (results), validate w/ results, explain why 6. Communicate the Results: Be prepared to present the project to an audience. Expect questions from the audience.

Variables Independent (manipulated): What you will be changing. Dependent (responding): What will respond to change; one you measure. Constants (control): What must remain the same.

Control Group The control group is exposed to the same conditions as the experimental group, except for the variable being tested. All experiments should have a control group.

Types of Data Quantitative: measures are numerical (sales, participants, income etc.) Qualitative: measures are less tangible, such as users’ expressions of appreciation of your work, or critical acclaim of your artistic activity.

Terms You Should Know Scientific Law: A scientific law is based on experimental evidence It is general something which seems to always be true. Hypothesis: A hypothesis is a uncertain explanation of an observation or pattern which has been observed in nature. Scientific Theory: Valid explanation of some aspect of the natural world, based on knowledge that has been repeatedly confirmed through observation and experimentation System: a group of related parts that move or work together