Writing a scientific procedure

Print What is the Scientific Method? The scientific method is a process for experimentation that is used to explore observations and answer questions. Does this mean all scientists follow exactly this process? Some areas of science can be more easily tested than others.

Writing a scientific procedure

You've chosen a topic and asked a question. You've done a little bit of research and made a best guess as to what the answer might be. Now it's time to design your experiment. The first step is to write the procedure.

If your instructor gives you an outline for how to write a lab report, use that. Some instructors require the lab report be included in a lab notebook, while others will request a separate report. Here's a format for a lab report you can use if you aren't sure what to write or need an explanation of what to include in the different parts of. Write the experimental procedure like a step-by-step recipe for your science experiment. A good procedure is so detailed and complete that it lets someone else duplicate your experiment exactly! A good procedure is so detailed and complete that it lets someone else duplicate your experiment exactly! Whether you are doing a science fair project, a classroom science activity, independent research, or any other hands-on science inquiry understanding the steps of the scientific method will help you focus your scientific question and work through your observations and data to .

Once you complete the activities on this page, you'll be well on your way to a complete experimental procedure! The procedure is a set of very specific instruction about how you are going to conduct your experiment.

writing a scientific procedure

Consider the image below. What happened to the sandwich on the left?

Preparing Experimental Procedures for a Science Fair Project

Sadly, no one could eat the sandwich on the left. It doesn't even look like a sandwich! The problem is a lack of detail. If you have never made a peanut butter and jelly sandwich, the very precise and detailed directions on the right would be necessary to make the sandwich correctly.

Details are the most important part of any experiment because without detail, it would be nearly impossible for someone else to replicate your experiment.

Variables Details also help to control variables in your experiment. Before you can begin writing the procedure, you need to decide on your independent variable.

writing a scientific procedure

There are three types of variables to consider: Independent Variable The independent variable is the one that YOU choose to help you answer your question.

A well designed experiment has only one independent variable. That means you can only change one condition in each experiment. This type of variable is something that you do differently in each trial i. Nothing else should change but this one variable.

Controlled Variables These are all the materials, measurements, and methods that you want to stay exactly the same so that the only thing responsible for change is the independent variable you chose.

Every experiment has many controlled variables. These variables should be exactly the same for every trial i. Dependent Variable The dependent variable is the thing that changes as a result of your independent variable, or the one thing that you intentionally changed.

Amy Brown Science: Can Your Students Write a Clear and Concise Lab Procedure?

This is like cause and effect. What happened the dependent variable because of what you changed independent variable? If there's more than one independent variable, the experiment becomes flawed because you can't be sure what caused the changes you observed.Write the experimental procedure like a step-by-step recipe for your science experiment.

A good procedure is so detailed and complete that it lets someone else duplicate your experiment exactly! Repeating a science experiment is an important step to verify . The scientific method is employed when creating and executing an experiment.

The purpose of the scientific method is to have a systematic way of testing ideas . The Scientific Method: Writing a Lab Procedure This FREEBIE allows your students to practice writing a set of clear and concise laboratory instructions. A key component of the scientific method is the recording and publishing of results.

As you will likely recall, the scientific method requires developing a hypothesis, putting it to the test, and then determining if your results support the hypothesis. Essentially, the format for a research report in the sciences reflects the scientific method but adds to the process a little.

Write the experimental procedure like a step-by-step recipe for your science experiment. A good procedure is so detailed and complete that it lets someone else duplicate your experiment exactly!

A good procedure is so detailed and complete that it lets someone else duplicate your experiment exactly! If your instructor gives you an outline for how to write a lab report, use that. Some instructors require the lab report be included in a lab notebook, while others will request a separate report.

Here's a format for a lab report you can use if you aren't sure what to write or need an explanation of what to include in the different parts of.

How to write the procedure for an experiment