Lab Write Up Guide

Save this guide – it will be useful for every lab!

 

Conducting controlled experiments is just one part of the scientific process.  After an experiment is conducted, the scientist is then expected to write a report on his/her findings.  These reports have a typical structure and style.  We’ll be practicing this type of reporting throughout the year.  Each lab report should be structured according to the format below. Reports MUST be typed.

 

Cover Page: With name, date, class.        

 

Title:  This should very briefly give an impression of the experiment. Be original and creative. Do not copy the name of the lab guide.

 

Purpose:  This states what you hope to accomplish - it’s a brief statement of the scientific question to be examined.  Use action words like measure or demonstrate and pronouns like I, We.

 

Materials: Include equipment, chemicals and quantities used.

 

Procedure:  This should be a detailed list or description of the steps you followed during your experiment.  Diagrams or pictures can be very helpful in this section. You may summarize the procedure in your own words.

 

Observations: These are statements of what you witnessed throughout the lab while you were carrying out your procedure. They must be true observations.

 

Data/Results:  Here is where you present your data—usually in a neat and organized data table. Tables are used to organize and communicate results to outside observers.  You can also look back on your data when developing a theory/ conclusion. 

 

Calculations:  This section is where you show any mathematical calculations you needed to complete during this experiment. This is an important section because it shows where you derived your final results. Formulas used should be included in this section.

 

Analysis:  This is a very important section of the report. WORTH 40 POINTS.

**Sometimes you will be asked to answer questions to guide you in the analysis.   

Ø  Explain what happened in your experiment by demonstrating your understanding of the experimental process.   

 

Conclusion: Explain all the concepts and vocabulary that were used in the lab in detail. Use Prose. This should be at least a ½ page statement that answers the questions posed in your purpose.  Avoid personal feelings and emotions. “See grading rubric”