Help me write a biology experiment report for junior high school, how to write a biology experiment

Purpose: Format:

Participants: Location:

Subject: Research on the problem.

It depends on what you write, and the above can also be randomly changed

Sample Biology Experiment Report Format

Experiment Name: Observation of chloroplast and cytoplasmic flow with high-power microscopy.

1. Purpose of the experiment:

1.Preliminary mastery of the use of high-power microscope.

2.To observe the morphology and distribution of chloroplasts in the cytoplasmic matrix of higher plants.

Second, the experimental principle:

The chloroplasts of higher plants are ellipsoidal, and under different light conditions, the chloroplasts can move and change the direction of the ellipsoid, so that they can receive more light and not be burned by strong light.

In bright light, chloroplasts face the light source with the sides of their ellipsoids; In low light, chloroplasts face the light source with the front of their ellipsoid. Therefore, the shape of the chloroplast ellipsoids in the leaflets of cucurbita moss collected under different light conditions is not exactly the same.

The cytoplasm in living cells is in a constant state of flux, and observing the flow of cytoplasm can be marked by the movement of chloroplasts in the cytoplasmic matrix.

3. Materials and utensils:

Moss leaves, fresh black algae, microscope, glass slides, coverslips, droppers, tweezers, razor blades, Petri dishes, pencils.

Fourth, the experimental process:

1.Temporary loading of moss leaves.

2.Observe chloroplasts with a microscope.

3.Temporary loading of black algae leaves.

4.Observe cytoplasmic flow with a microscope.

V. Discussion:1Are chloroplasts stationary in cytoplasmic matrix and why?

2.What is the relationship between the morphology and distribution of chloroplasts and the function of chloroplasts?

3.The cytoplasm of plant cells is in a constant state of flow, what is the significance of this for living cells to complete life activities?

4.Use a pencil to draw a leaf cell to mark the approximate flow direction of the chloroplast.

Give the report a concise title that accurately summarizes the topic of the study. Introduction: In the introduction, introduce the biological topic you are researching and propose the purpose and importance of the research.

Detailed steps such as experimental operations, sampling methods, and observation records are included to enable readers to replicate your experiments. Results: Summarize the results of your research.

Present your observed data and experimental results in the form of text, **, graphs, etc. Make sure the results are clear and easy to understand. Discuss:

Interpret and analyze your results. Discuss the phenomenon you observed, the significance of the results of the test, the consistency or inconsistency with the expected results, etc. Hypotheses, possible solutions and inferences are proposed, and they are compared with the existing relevant research results.

Conclusion: Summarize your findings and the research questions you raised in the introduction. Highlight the significance and potential applications of your findings to the field.

References: List all ** that you have cited or referenced during your research. Please note that when writing your research report, make sure to follow the guidelines of science**, including clear, logical, and accurate presentations.

Use scientific and biology-related terms to describe your research, while taking care that the language is concise and in line with the reader's level of understanding. Finally, it is important to pay attention to the structure and format of the report, including the heading, clear paragraphs, and consistent font, so that the report as a whole presents a concise, organized and professional style.

1. Experimental report on the living environment of the student ** rat woman.

Experiment content: What is the living environment of the rat woman related to?

The purpose of the experiment: to let students know what is related to the living environment of the rat woman through the experimentExperimental equipment: several rat women, two petri dishes, and some damp soil Experimental steps:

Divide the rat woman into two equal parts and place them in Petri dish A and Petri dish B respectively, where Petri dish A is put in an appropriate amount of moist soil and placed in a cool place, and Petri dish B is not put in moist soil and placed in a sunny place.

Experimental Record: The rat woman placed in the shade grows normally, and the rat woman placed in the sun gradually diesExperimental results: The living environment of the rat woman is related to humidity and sunlight exposure 2.

Experiment content: (Just change the name above).

Experiment time: Purpose of the experiment: Let students understand how earthworms can run fast through experiments Experimental equipment: 1 earthworm, glass plate, wooden board, 16 open paper Experimental steps: Let the earthworm climb on the glass plate, wooden board, and 16 open paper respectively, and observe which one runs fast.

Experiment Log: Earthworms crawl slowly on glass plates, climb fast on paperResults: Earthworms crawl fast on wrinkled objects.

Learn on your own, not just for answers. Be more understanding yourself.