1. Using the Scientific Method
Writing a Lab Report
Using the Scientific Method

2. 1. Title of Lab. The Effect of (manipulated variable) on
1. Title of Lab The Effect of (manipulated variable) on (responding variable).
2. Investigative Question/ Purpose:
Why? How? What? When? Which? Will?
3. Hypothesis: If (how the manipulated variable is changed), then (the effect on the responding variable).
If I add milk to a piece of bread, then it will become moldy.

3. 3. Materials: List all the supplies used - be specific
4. Procedure: detailed step by step explanation of what you did

4. Use your senses to describe what happens
5. Observations and Results: tables, graphs, labeled drawings, or descriptions
Responding variable
Use your senses to describe what happens
Manipulated variable

5. 6. Conclusion: Write a cohesive paragraph using complete sentences
6. Conclusion: Write a cohesive paragraph using complete sentences. Do not just cut and paste answers.
What was the objective? What was the question and hypothesis?
Ex.: The objective for the experiment was…
I thought that …
Scientists can use … to help them …
In order to determine ..., you need to …

6. 6. Conclusion: (continued)
Briefly state what did you do to test the hypothesis.
Ex.: Today in lab we …
In this activity we …
To test our hypothesis …
In order to answer our objective, we …

7. 6. Conclusion: (continued)
What evidence do you have? Did the data support your hypothesis?
Be specific!
Ex.: We found out … because…
We determined … based on…
We calculated …
We tested …

8. 6. Conclusion: (continued)
Discuss possible errors in your data collection, and how you can eliminate them next time. Did you control all the unknowns?
Ex.: I think … could have affected my results because ….

9. 6. Conclusion: (continued)
What did you learn? What do you still have questions about?
Ex.: I learned ….
I discovered …
I now understand …
In conclusion …