The Scientific Method
Scientific Method: a problem solving tool used by scientists to determine the validity of a hypothesis. It is an organized process for finding a solution to a question.
Scientific Method Steps
Step 1: State the problem in the form of a question
Step 2: Research the problem
Step 3: Form a hypothesis
Step 4: Write down the procedures that will be used to test your experiment
b) make sure that the experiment fits the hypothesis that is being tested
c) help others who want to repeat the experiment
Step 5: Perform experiment to test hypothesis
Step 6: Observe and record all results
b) watch your experiment closely and note any reactions that occur
c) keep results together in one journal
d) be ethical and honest about the data from the experiment
Step 7: Interpret the data
b) draw pictures or take photographs to show the procedure and results
c) write a summary
Step 8: Conclusion
b) Was is what one expected?
c) Did the results agree with the hypothesis?
d) Did it answer the original question?
Scientific Method Steps
Step 1: State the problem in the form of a question
- It is extremely important to begin with a solid problem or question.
- A good question can be examined, measured and analyzed.
- Choose a problem that you do not know the answer to and a problem that you can work with.
Step 2: Research the problem
- Research is a critical part of any science project or experiment.
- Research can either make or break the project.
- When doing research, use a wide variety of resources outside of the school library.
- Research resources: books, library index, newspapers, magazines, science videos, and internet.
- Scientists rely heavily on the scientific method because there are so many variables to consider and any one of them can affect the results of the experiment.
Step 3: Form a hypothesis
- Hypothesis: an educated guess about a possible solution or answer to your problem or question.
- Developing a good, solid hypothesis is the most difficult step of the scientific method.
- Your hypothesis is the center of your project.
- If the hypothesis doesn't make sense, the whole project won't make sense.
- When forming the hypothesis, stick with a simple statement, and make it precise and measurable.
Step 4: Write down the procedures that will be used to test your experiment
- Detailing the entire experiment and recording all the variables analyzed, scientists are able to track the validity of the hypothesis.
- Baseline measurement: something to measure our variables with.
- Writing your procedures will:
b) make sure that the experiment fits the hypothesis that is being tested
c) help others who want to repeat the experiment
Step 5: Perform experiment to test hypothesis
- #1 rule for testing a hypothesis is to always follow the written procedures.
- Control group: there are not variables being tested. Gives us a basis for comparing the experimental group.
- Variables: the factors that are being tested in the experiment. It is critical that everything in the experiment is the same each time it is tested, except for the one variable that is being test.
- Experimental Group: The group that is being tested by changing one variable at a time.
Step 6: Observe and record all results
- While performing an experiment:
b) watch your experiment closely and note any reactions that occur
c) keep results together in one journal
d) be ethical and honest about the data from the experiment
Step 7: Interpret the data
- When interpreting the data, make sure to:
b) draw pictures or take photographs to show the procedure and results
c) write a summary
Step 8: Conclusion
- Purpose of conclusion: to communicate the result to others.
- In the conclusion make sure to answer the questions:
b) Was is what one expected?
c) Did the results agree with the hypothesis?
d) Did it answer the original question?