How to Write a Procedure for a Science Project


Every science project has several basic components. There is the question, which serves as the central purpose for the entire project. There is then the hypothesis, which is the experimenter's guess as to what the results of the experiment will be. The procedure comes next. This is the information that details how the experiment is conducted. This then gives way to the results and then the conclusion, which details what the experimenter extrapolated from the results.

  • Take an inventory of all supplies needed in order to conduct the experiment. Remember to include specific details. For example, instead of writing down glass jar, you will want to write down 16-ounce glass jar.

  • Set up the experiment. Write down every step you take to set it up. If you need to assemble a component, write down the steps you take to assemble it. Once again, be as detailed as possible.

  • Conduct the experiment. Simultaneously write down every step in detail. Be sure to make note of durations of time when important. For example, if you have to hold a flask over a Bunsen burner for a given amount of time, make note of this detail.

  • Create a document, whether on paper or on your computer, that will be your procedure.

  • Create a section called "Materials." List all the materials you used.

  • Create a section called "Set Up." List all the steps you took to set up your experiment. If there are any specific environmental requirements, make note of these as well. For example, if the experiment must be conducted in a room with no natural light, write this down as a step. You can mark steps off in a numbered or bulleted list, depending on whether order is important.

  • Write down "Step 1," and begin with the first step of the experiment. Continue with "Step 2" and so on. Be sure to list the steps in sequential order.

  • Repeat the science project using your procedure to see if your description is easy to follow.

Tips & Warnings

  • You may want to list any warnings or potential dangers as well. For example, if the experiment calls for an open heat source, such as a Bunsen burner, you may want to write that the experiment should only be conducted with adult supervision.


  • Photo Credit science image by martin schmid from
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