Please help me Write a lab report for this lesson’s lab. Be sure that your report:
includes all major elements of a lab report.
meets your teacher’s content and format expectations.
is clearly organized and formatted.
demonstrates strong scientific reasoning and writing.

While writing, you can revisit previous parts of the lesson by returning to the course map. Be sure to refer to the
lab’s student guide, which you can find on the first page of the lab experiment activity. You may also find it
helpful to refer to the remaining pages of this guide, which provide general guidelines for writing lab reports.
You can upload your completed report with the upload tool in formats such as OpenOffice. org, Microsoft Word,
or PDF. Alternatively, your teacher may ask you to turn in a paper copy of your report or to use a web-based
writing tool.
Lab Report Checklist
Introduction
 Did you title your lab report?
 Did you state the purpose of the experiment?
 Did you state the question you posed before the
experiment?
 Did you restate the hypothesis (or prediction) you
formulated before the experiment?
 Did you list all variables and label the
independent and dependent variables? Did you
indicate any controlled variables?
Materials and Procedure
 Did you make a list of materials? Did you include
quantities and SI units?
 Did you present the steps of the procedure as a
numbered list? Did you note any changes to the
original procedure?
 Did you identify your experimental and control
groups?
Data Collection and Organization
 Did you organize all data in a clearly labeled table
and/or graph?
 Did you check that your data is accurate and
complete?
 Did you title any tables and graphs? Did you label
rows, columns, axes, etc., and include units?
Analysis and Conclusion
 Did you interpret your data and graphs in the
analysis rather than just restate your findings?
 Did you determine whether your data supported
or refuted the hypothesis?
 Did you describe possible sources of errors?
 Did you suggest ways to improve or further your
lab investigation?
Overall
 Did you make sure that your writing is precise,
unbiased, and concise?
 Did you meet your teacher’s content and format
expectations?
Lab Report Guide
Copyright © Edgenuity Inc. 2
Overview
The Purpose of Lab Reports
When scientists make discoveries, they write
reports to share their discoveries with the world.
Likewise, after you complete an experiment, you
can write a report to share what you discovered.
Writing a lab report is an important skill because it
helps you demonstrate what you learned in a
science experiment. It also helps you practice
writing accurately and clearly about technical
things—a skill that is valuable in the real world.
This guide describes the format and style of lab
reports. It has many tips that will help you write
stronger lab reports. Use it as a reference
throughout your science studies.
Lab Report Format
Although the format of lab reports varies somewhat,
it typically includes all of the following components
in the order shown.
Section Category Page #
Part 1 Introduction (Title, purpose,
question, hypothesis,
variables)
3-4
Part 2 Materials and Procedure 4
Part 3 Data Collection and
Organization
5
Part 4 Analysis and Conclusion 6
Later pages in this guide provide additional detail.
Science Writing Style
Science writing is different from other styles of
writing you may be familiar with, such as persuasive
writing and narrative writing. As with all types of
writing, science writing has its own style; it is both
precise and objective.
Science writing is precise. Be concise, but use
descriptive language and specific details to help
readers “see” what you observed. For example, a
student who observes the presence of bubbles in a
liquid during an experiment may write “The liquid
had bubbles.” This sentence is concise, but it
doesn’t tell the reader what kind of bubbles the
student saw. Two precise alternatives follow:
 “The liquid had small bubbles—the size usually
seen in soda.”
 “The liquid produced bubbles the size of grapes
or marbles.”
Science writing is objective. Avoid bias and
subjective descriptions such as “The liquid had
huge bubbles.” Also, use the third-person voice and
avoid personal pronouns such as I, we, you, he,
she, and they. This will allow readers to focus on
the scientific topic without being distracted by
thinking about the person who did the work.