top of page


AIS Innovation Center

Biology Lab - Second Floor


September 2023


Oriana Onofri


9th grade


Throughout this lab experience called Factors that affect photosynthesis students were learning about the scientific method by identifying the issue, recognizing the purpose of the experiment, and predicting a possible outcome, using scientific methods by collecting data and using scientific methods by analyzing and verifying results. Also, they were able to make an effective issue question for the experiment, create an objective for the experiment, recognize what is a hypothesis in research, make a hypothesis in research using the proper punctuation, make a hypothesis in research using the proper punctuation, identify variables in an experiment and collect and organize data.


Photosynthesis is a process by which plants prepare their own food in the presence of water, chlorophyll, sunlight, and CO2. This process occurs mainly in the leaves of the plants. In some other plants, the stems also perform photosynthesis. Photosynthesis occurs in the chloroplast cells of the leaves. There are several factors affecting photosynthesis- its rate and efficiency. Let’s look at these factors affecting photosynthesis and understand how they affect it.

In order for the experience to be successful, students had to follow a series of next steps:

1. Set the samples:
- Per table take 3 beakers and fill them with the same amount of water.
(make your annotations: water amount, why did your choose that amount)
- Place the cotton at the top and place the same number of seeds. ( annotations: type of seeds, number of seeds).

2. Report data.
In your own words, summarize the steps you took to complete the lab. Add images, photos, or drawings if needed.
- Describe the sample preparation, with quantities and conditions. (Initial picture)
- Indicate how often you will record data.
- Narrate how you will gather your information and measurements.
- Record data (first-day table, and specific annotations)

DAY 2 - 10
3. Data collection
- Collect and Report data.
- Make specific observations.

4. Data organization and analysis
- Make averages
- Make graphics to compare the outcomes.
- Analyze your results.

Results and Impact Generated

By the end of this lab experience, students had to reflect on their learning and answer the following questions:

1. What did you observe?
2. How are your observations and data connected to the topic?
3. If you had the chance, what other variables would you like to control in a future experiment?
4. What uses could you give this knowledge in our current reality?
what factor affects photosynthesis in this project? what other factor may be affecting photosynthesis in plants outside the lab?


bottom of page