1. Steps of the Scientific Method

2. Experimental Design Using the scientific method
The scientific method is a way to answer questions and solve problems.
All true experimental investigations must have:
1 independent variable
Dependent variables
Constants and/or controls

3. Do You Know the Steps of the Scientific Method?

4. Construct a Hypothesis Test with an Experiment
Scientific Method
Ask a Question/
Background Research
Construct a Hypothesis
Test with an Experiment
Collect and Analyze Results
Report Conclusions

5. Steps of the Scientific Method
1. Question/Background: Develop a question or problem that can be solved through experimentation.

6. Steps of the Scientific Method
1. Research: Make observations and research your topic of interest.

7. Steps of the Scientific Method
2. Formulate a Hypothesis: Predict a possible answer to the problem or question. Example: If soil temperatures rise, then plant growth will increase. I “think” or “I believe” should not be used in a hypothesis

8. Steps of the Scientific Method
3. Experiment: Develop and follow a procedure. The procedure is a detailed, step-by-step set of directions for carrying out your experiment.

9. Independent Variable
The independent, or manipulated variable, is a factor that’s intentionally varied by the experimenter. The independent variable is the input or x-value.

10. The dependent variable is the output or y-value.
The dependent, or responding variable, is the factor that may change as a result of changes made in the independent variable.
The dependent variable is the output or y-value.

11. Control Group
In a scientific experiment, the control is the group that serves as the standard of comparison.

12. Constants
The constants in an experiment are all the factors that the experimenter attempts to keep the same.

13. Do you know the difference between the independent and dependent variables in an experiment?

14. Review of Variables:
An Independent Variable: The only change between the experimental groups. It is the difference between the groups. It is what you are testing!
A dependent variable: The effect or result that can be observed and measured in your experiment.
Constants: All parts of the experiment that are kept the same. Only one difference should be tested at a time in an experiment.
Control Group- A group used to compare the test groups against. The control group does not have anything done to it. No independent variable.

15. Steps of the Scientific Method
4. Analyze Results: Measure and record the information you get from your procedure. These are sometimes called observations or results. Record your information carefully in a Data table. Display your information in a graph.
Quantitative-numerical
Qualitative- descriptive

16. Steps of the Scientific Method
5. Conclusion: Include a statement that accepts or rejects the hypothesis. Make recommendations for further study and possible improvements to the procedure.

17. Think you can name all five steps of the scientific method?