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What Is The Scientific Method

Updated on January 31, 2016

Scientific Method Defined

The scientific method is a logical thought progression that allows us to think rationally about problems and processes that we observe in the natural world. It is the main tool scientists use in experiment development. It does not matter if the scientist is making medicine or studying wetland ecology, they are using some form of this method to help develop questions and answers to those questions.

Illustrated Scientific Method

This diagram illustrated the steps of the scientific method in an easy to read format.
This diagram illustrated the steps of the scientific method in an easy to read format. | Source

Make Observations

The first step in the scientific method is to make observations. We have to stop thinking and just look. This step helps to identify the problem that needs solved or the question that needs answered. Sometimes this step is overlooked but it can be the most important.

Make Predictions

Once your observations are complete and you have a question, it's time to predict the answer. This is called forming a hypothesis. There are different kinds of hypotheses but it would take another article to fully explain those. The main concept to keep in mind is that this prediction has to be testable.

Have You Ever Performed An Experiment

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Test Your Hypothesis

Testing that hypothesis the next step. After you pose a hypothesis you must develop an experiment to test that prediction. In an experiment you always want to have two groups at the very least. One group will serve as a control while the other group is the one your experiment on. The control group will experience all of the same conditions as the experimental group minus the fact that they won't be exposed to the experiment.

For example, I am curious if herbicide kills microscopic pond life. I would have two groups of pond life in my lab under the same conditions except one group would be exposed to the herbicide and one group would not. This gives an experiment validity.

Analyze Results

The next step in the scientific method is to analyze your results. In the experiment outlined above, if all of the microscopic animals exposed to herbicide died and the control group lived, it would be possible that the herbicide caused the deaths. If both groups die. no final conclusion could be made about the effects of herbicide on these organisms. During this process of the scientific method, it is common to create more questions. It happens more often than it doesn't.

Draw Conclusions

At the end, it is time to make conclusions. This is your attempt to explain why your results came out like they did. It is also your time to figure out why they are so important and why they may be important in the future.


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    • Astralrose profile image

      Astralrose 2 years ago from India

      Just the kind of explanation I need. Thank you!

    • teaches12345 profile image

      Dianna Mendez 2 years ago

      This is a great explanation of the scientific method. I remember it from teaching in college and it is so interesting to use conducting experiments. Good job making it simple to understand.

    • CassandraCae profile image

      Cassandra Kuthy 2 years ago from Ohio

      Thank you for your kind comments. It makes me very angry to hear those words too and reading that phrase, "it's just a theory," over and over again is what inspired this post.

    • MelRootsNWrites profile image

      Melody Lassalle 2 years ago from California

      This is so well written! I've heard the comment "It's just a theory" so many times. Many people don't understand the process behind scientific theory. You made it very easy to understand. Well done!

    • Iris Draak profile image

      Cristen Iris 2 years ago from Boise, Idaho

      This is a very good post. You covered the most important thing about a hypothesis, it must be testable. Many people forget that. And research leads to more questions. Woo! Which makes us dig deeper. I love science! Great job. So glad Heidi Thorne shared this on Twitter. Thanks to you both!

    • heidithorne profile image

      Heidi Thorne 2 years ago from Chicago Area

      Good review of the scientific process! Works for science and nonscience. Voted up and sharing!