Biology Investigatory Project Class 12 | Pdf

Biology Investigatory Project Class 12:

Hello Students, The key to success is choosing an interesting Biology investigatory project that does not necessarily take much time to complete. Class 12th Students have many things to do, so it is best to choose a Biology project idea that can be developed and completed in a few weeks or less. 
As high school students are expected to become familiar with word processors and printers, the quality of the presentation is very important. Do you make a poster? Make sure you make it as professional as possible. Also, remember that accurate citation is critical to any successful project. Always mention any references used to develop your experiment.


We know that finding a Biology Investigatory project is the hardest part of a science fair project for class 12, and sometimes it just takes a little help to focus on what kinds of topics would interest you. To help you find a class 12 biology investigatory project idea that is interesting to you, you can select any of the categories below under the heading of EXPERIMENTS, you will find dozens of interesting experiments.

High school science covers a variety of topics in Biology like Microbiology, Zoology, Botany, Biotechnology project ideas, Ecology, meteorology, etc. Therefore, nothing is forbidden when it comes to choosing Biology project topics for class 12. These ideas would be suitable for most of the high school curriculum. When reviewing the list, remember that you can make any of these ideas more complex by changing variables and comparing results.

You may be guided by your teacher regarding your choice of topic. The more original or new the project is, the better it would be. But it must be realistic in terms of the time available and at a level attained in higher secondary biology.

You must review the available literature to find out what type of work has been done. This will help you to reject some of the alternatives, and possibly cause you to modify others. It may also be the source of new ideas. By doing these investigatory projects you will gain experience in research besides providing opportunities for learning skills such as photography, electronics, etc.

It is not uncommon for school students to find suitable topics for a research project. The range of options is wide because there are as many scientific fields as there are different research fields. From the following topics student will be able to choose something for themselves:

Biology Investigatory project Class 12 Topics


Biology Investigatory Project Class 12 Topics:

1. How does temperature affect battery life? When comparing different brands of batteries: Is the brand that lasts the longest at high temperatures the same as the one that lasts the longest at cold temperatures?

2. How do preservatives affect vitamin C? Can you affect the levels of vitamin C (or another measurable vitamin) in the juice (or other food) by adding a preservative to the juice?

3. How is phosphorescent affected by light?
Is the brightness of the glowing materials in the dark (fluorescent) used by the light source (spectrum) that makes them glow or only by the intensity (brightness) of the light? Does the light source affect how long a phosphorescent material will light up?

4. Seed viability: Is there a test you can do to predict whether a seed will germinate or not? What factors can you measure that could be used to construct a test?

5. Soil erosion: Which methods of preventing soil erosion work best? For example, what is effective in preventing erosion in your yard?

6. Acid snow? Most of us have heard of acid rain, but do you know the pH range of snow? If you live in a snowy area, check its pH. How does the pH of snow compare to the pH of rain from the same area?

7. Smoke and plant respiration: Does the presence of smoke in the air affect plant respiration?

8. Teeth whitening: Find the shade of white that matches your teeth. Brush your teeth using teeth whitening toothpaste or gum. What color are your teeth now? For more information, ask other family members to try different products and track their results.

9. Biodiesel Production
Biodiesel is one with biodegradable bustível derived from renewable sources with vegetable oils and animal fats. This biofuel can be produced in Brazil from different oilseed species, such as castor, oil palm, canola, sunflower, peanuts, soybeans, and cotton, in addition to raw materials of animal origin with bovine tallow and fat swine.

10. Ethanol Production:
Ethanol has gained great momentum and has become an important source of energy for the country. Today, ethanol generated from sugarcane has the lowest production cost and the highest yield in liters per hectare of the product. All of its by-products are used: from the manufacture of ethanol we have vinasse and filter cake, used as fertilizers, and with the burning of sugarcane bagasse there is the cogeneration of energy. Research is being developed for the commercial use of second-generation ethanol, the ethanol of the future, which can expand production capacity by up to 40% without increasing the planted areas of sugarcane, bringing more productivity, efficiency, and sustainability in the production cycle.

11. Seed germination: Can you affect or improve the germination rate of seeds by pre-rinsing on a chemical before planting? Examples of chemicals to be tested include hydrogen peroxide solution, dilute hydrochloric acid solution, diluted isopropyl alcohol solution, and fruit juice. Some of these factors are believed to be able to loosen the seed coat that surrounds the plant embryo.

12. The effect of eye color on peripheral vision: Does eye color affect peripheral vision? Supposedly, people with darker eyes tend to have wider pupils for a given amount of light than people with lighter irises. If you have a more open student, does it give you measurably better peripheral vision? Another idea you would try would be to see if you have the same peripheral vision in bright light compared to dim light.


13. The effect of climate change on flowering plants
Have you heard of climate change? This natural process, much talked about by adults, is connected with a large amount of CO 2 in the air, the greenhouse effect that is also a natural phenomenon, responsible for leaving the Earth warm. These changes are happening faster now than in the time of our grandpas and are worrying researchers from all over the world since they end up harming animals, air, climate, etc. But have you ever stopped to think about how they affect plants?

14. Oil Spill EVS Project: 
We have all heard in news about oil spills and their harmful effects on our Earth and its marine life. But we, who do not get to see these effects closely, do not understand exactly the degree of impact that oil spills. In these projects, we are going to briefly discuss and perform the oil spill evs project.

15. Production of biosurfactant by using Micro-organisms
Biosurfactants are a diverse group of surface-active molecules, produced by a wide variety of microorganisms. Due to their amphiphilic nature, they are capable of modifying the water-oil, water-air, or soil-water interface and therefore reduce surface and interfacial tension. Compared with chemical surfactants, they have the advantage of being biodegradable, less toxic, and effective at extreme temperature, pH, and salinity; in addition to being able to be synthesized from residual or cheap sources. In the oil industry, they can be used as oil flow improvers, in the improved recovery of hydrocarbons via microbial pathways, improvement of the biodegradation of hydrocarbons, and cleaning of tanks and pipes. Their production is affected by the growth factors to which microorganisms are exposed, such as the presence of specific substrates, cations, and extreme conditions.


Class 12 Biology Investigatory Project Ideas:


1. Investigating the pH of a water sample:
Monitoring the physicochemical properties of water is of vital importance. The normal maximum permissible limit of pH for our life and health is 6.5–8.5. Abnormal levels of pH and their consequences are given below: pH 3 to 5 is too acidic for most organisms to survive, when the pH of water falls below 4.5 most of the fishes die, leaving only a small number of acid tolerant insects such as water boatman and whirligig. These insects (beetles) can survive and multiply even at pH 3.5. Similarly, pH>8.5 is too basic for most organisms to survive.


2. Impact of local industry on the environment and the remedial measures taken by the industry:
The guidelines and a brief outline of a few projects have been given with the purpose to design and perform such an investigation. Students and teachers can think and design investigatory projects based on almost all concepts about which experimental protocols have been given in the manual.


3. Investigating the biochemical (also called biological oxygen demand [BOD]) of a water sample as a pollution indicator:

Dissolved oxygen (DO) test measures the current status of oxygen in a water body. This is a useful starting point. However, DO content can vary considerably from day to day as affected by many factors like temperature, wind velocity, eutrophication, pollution, etc. The unpolluted water is characteristically rich in DO and low in BOD. The higher the BOD, the lower would be DO. Conversely, polluted water has high values of BOD. Water for drinking should have a BOD of less than 1. Typical BOD values for raw sewage run from 200–400 mg of oxygen/liter. The maximum.


4. Study of the genetic markers in the human population:
In this investigation, a few selected inherited traits can be investigated in the family members of a small population in the locality. The compilation and analysis of data will provide an about prevalence of trait in the said population.


5. Study of the effect of chemicals and pollutants on the Mitotic Index of the mitotically dividing onion root tip cells:

This is the easiest Biology Investigatory project include including the Growing of onion root tip cells in the solution of pollutant /chemical and also in normal water as control. Preparation and observation of slide for the study of mitotic index both in experimental and control set-ups. Analysis of the effect of pollutant/chemical by comparing the data of mitotic index between experimental and control variables.


6. Agrochemicals and their effects:
Another important Biology project topic for class 12 The project was carried out in a survey mode with a questionnaire prepared with the help of the teacher to cover the following aspects. List of pesticides used, the amount used/hectare or acre, periodicity of spray, name of the crop plant grown, recommended dose and the dose employed, known effects on pest, whether the chemical pesticide is biodegradable or not, alternate eco-friendly biocides . List of fertilizers used, cost incurred/acre/year, recommended dosage/time of use and the dosage used, known effects on fertility of the soil, any decrease in crop productivity, and use of eco-friendly biofertilizers (VAM fungi, leaf mold, green manure, dung, etc.).


7. Ecological role of some animals observed in a local area:
This topic is included in the Record of the various plant species growing in the area under study – trees, shrubs, annual/perennial herbs, etc. Note the season when a flower/seed is formed. Note the various types of insects, birds, reptiles, amphibians, mammals, etc., and record their role as a/an
(i) Herbivore
(ii) Pollinator
(iii) In-seed dispersal agent
(iv) Prey


Another Important Biology Investigatory project for Class 12:
  1. How fertilization occurs in frog
  2. Five Kingdom Classification 
  3. Structure of DNA and RNA
  4. Hormones
  5. 100 Biotechnology project topics 
  6. Central Dogma of Life
  7. Internal and external fertilization 
  8. Factors affecting photosynthesis 
  9. Photosynthesis 
  10. Enzyme 
  11. Factors affecting Enzyme actions 
  12. Plant hormone 
  13. Effect of plants hormone 
  14. Biofuel production from waste products 
  15. Alcohol production from sugarcane 
  16. Ethanol Production from Apple 
  17. Production of biosurfactant
  18. Biosafety 
  19. Fermentation process 
  20. Bioethics 
  21. Protein synthesis in vivo manner.
  22. Advantages and disadvantages of biology.
  23. Formation of recombinant vaccines against covid19 
  24. Production of biofertilizer
  25. Production of single-cell proteins.
  26. How to reduce atmospheric Co2 organically.
  27. Study the process of Osmosis and Turgor pressure
Hope this biology investigatory project for class 12 is helpful to you…
FAQs About Biology Investigatory Project for Class 12th

1. How to choose a Biology Investigatory project for Class 12
Answer: For Choosing an Investigatory Project You may be guided by your teacher regarding your choice of topic in this page we also provide several project topics you can select any one topic. As we know A more original project topic is best. But it must be realistic in terms of the time available and at a level attained in higher secondary biology. While Searching for your project topic You must review the available literature to find out what type of work has been done on your selected topic. This will help you to reject some of the alternatives, and possibly cause you to modify others. It may also be the source of new ideas.


2. How to Design my Class 12 Biology Projects?
Answer:  Having established the objectives of your chosen project, you must have an experimental design. This will allow you to collect the data you need in a scientific way to test the hypothesis. For example, if your project involves investigating the hypothesis that stale milk contains more bacteria than fresh milk, devise the procedure you would adopt to carry out your investigation.


3. How to Plan my Project Investigations
Answer: Having decided on your topic for scientific investigation, you should give careful thought to the plan of your investigation in some detail. These may include. What hypothesis can you make, How can you ensure that the experimental tests and measurements you carry out are accurate and reliable? What controls do you need? How many variables are you investigating? Correctly identify key variables as independent and dependent. Are your variables discrete or continuous? Identify appropriate control variables for fair tests. How many repeat observations or samples will you require?


4. How to complete my Biology Project within a short period?
Answer: Executing the Project, Following the planning, a brief description of the expected procedures has to be approved in advance by the teacher. Having decided what controls you need to use, list the components of your experiment and decide what quantities of substances to use, and how to set the experiment. You should also decide what type of readings or measurements you are going to make, how often and how many. Note the source of error, if any, that you come across. Handle instruments and equipment appropriately to give accuracy. Repeat measurement. Keep proper controls and the variables constant.

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