The Scientific Method involves a series of steps


















- Slides: 18
The Scientific Method involves a series of steps that are used to investigate a natural occurrence.
Making an observation Problem/Question Research Formulate a hypothesis Experiment Collect and analyze results Conclusion Communicate the results
Steps of the Scientific Method 1. Making an observation: The first step Making an observation of the scientific method is to make an observation about the world around you.
Steps of the Scientific Method 2. Problem/Question: Develop a Problem/Question question or problem that can be solved through experimentation.
Steps of the Scientific Method 3. Research: Research Do background research to learn what others have discovered about your topic. You can use: • books • magazines • reports • experts • your past experiences or prior knowledge
Steps of the Scientific Method 4. Formulate a Hypothesis: Predict a Formulate a Hypothesis possible answer to the problem or question. An educated guess. educated Example: If soil temperatures rise, then plant growth will increase.
Do you know the difference between the independent and dependent variables?
Independent Variable The independent, or manipulated variable, is a factor that’s intentionally varied by the experimenter. It’s the one that you change.
Dependent Variable The dependent, or responding variable, is the factor that may change as a result of changes made in the independent variable. It’s the one that you measure.
Constants or Control Variables The constants in an experiment are all the factors that the experimenter attempts to keep the same.
Steps of the Scientific Method 5. Experiment: Develop and follow a Experiment procedure. Include a detailed materials list. You need an experimental group and a control group. The outcome must be measurable.
Experimental Group An experimental group is the group in an experiment that receives the variable being tested. One variable is tested at a time. The experimental group is compared to a control group, which does not receive the test variable. In this way, experimental groups are used to find answers in an experiment.
Control Group In a scientific experiment, the control is the group that serves as the standard of comparison.
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.
Steps of the Scientific Method 6. Collect and Analyze Results: Modify Collect and Analyze Results the procedure if needed. Confirm the results by retesting. Include tables, graphs, and photographs.
Steps of the Scientific Method 7. Conclusion: Conclusion Formulate a conclusion based on your research and the data you’ve gathered from your experiment. Include a statement that accepts or rejects the hypothesis. Make recommendations for further study and possible improvements to the procedure.
Steps of the Scientific Method 8. Communicate the Results: Communicate the Results Be prepared to present the project to an audience. Expect questions from the audience.