CBSE class 12 biology project topics consists of various subjects regarding plants and animals life, life stages of living things, human body parts and its functions and many more. Check here 150+ CBSE Class 12 Biology Project Topics 2026!
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The Investigatory project topics under CBSE class 12 biology practical exam 2026 include Human Reproduction, Mechanism of Inheritance, Evolution, Human Health, and Diseases. It consists of various activities and project work from the CBSE class 12 syllabus.
The project component in the CBSE class 12th exam 2026 is for a total of 20 marks and hence, an important component in the exam. Hence, students need to choose the correct project topic to score well in the exam.
Students can check the unique topics for the Class 12 Biology Project PDF in this article. The bio project topic class 12 are selected by the teachers from the best CBSE 12th books for better exam preparation.
Top 10 CBSE Class 12th Biology Project Topics 2026
There is a wide range of topics that students can work with regarding their CBSE class 12 Biology Project Topics 2026. Candidates can choose unique topics for class 12 biology project PDF stated below.
1. Examine pH of Different Water Samples
Under the CBSE class 12 Biology Investigatory project topics 2025-26, Candidates must study the pH level of Water and its properties. The pH level of 6.5 to 8.5 is healthy and safe for drinking. Water with a pH level of 3 to 5 is very acidic. Candidates must take the universal Indicator, Litmus paper, and different water samples and test the pH level for each of them.
- Required Materials: Various water samples, universal indicator and litmus paper.
2. Examine the Effect of pH on Seed Germination
The pH of the germinating medium influences seed germination. The quantity & type of different minerals, along with the quantity and quality of humus, hold the pH in soils. An exact level of pH is required for other seeds for maximum germination. The level of pH also impacts the growth and development, reproduction and metabolism of the plant.
- Required Materials: 125 seeds of various types, pH buffers, purified Water, Petri plates, and blotting paper.
3. Growing Yeast Process of Sugar Fermentation
This fungus is composed of eukaryotic microbes, i.e., cells with nuclei. Fermentation is the method of breaking down a substance by bacteria, microorganisms or yeast. Yeast starts working when mixed with sugar as it smashes down due to fermentation. As a result, it does not cause any reaction.
- Required Materials: 3 clear cups, sugar, Water, & marker pen.
4. Impact of Sugar on Bean Plant Growth
Candidates must assess if adding sugar to Water enhances plant growth and health. Sugar provides additional energy, and plants should grow stronger and healthier. It can be observed through visual inspection and comparison of samples with and without sugar.
- Required Materials: Bean seeds, distilled Water, Water with added sugar, cotton, and beaker.
5. Effects of Diet on Blood Glucose
Candidates must explore the correlation between blood glucose levels and diet in non-diabetic individuals, as high-carbohydrate meals increase blood glucose levels while low-carbohydrate diets decrease them.
- Required Materials: A glucometer for measuring blood glucose levels before meals and after meals for four non-diabetics.
6. Characteristics Affecting Nodule Formation in Legumes
Candidates must try to determine which factors are essential in the formation of nodules on legumes. The Rhizobium leguminosarum bacteria fix nitrogen for a vegetable plant in exchange for shelter and nutrients.
- Required Materials: Students will require 12 pots, 2 bags of vermiculite, a bag of potting soil, 36 snow pea seeds, Bacteria (Rhizobium leguminosarum), nutrient broth, an inoculating loop, and a Bunsen burner.
7. Proof Light Colour Affects Plant Growth
Students must observe how different light colours affect plants' growth. Students must place plant pots under different boxes, let them grow, and record their sizes.
- Required Materials: 5 boxes with different coloured transparencies(red, blue, green, yellow and clear)on top and front, seeds, potting plant, and rulers. Students must place plant pots under different boxes, let them grow, and record their sizes.
8. Mechanism of Seed Sprouting
Students must determine bean seed growth speed in various germinating solutions. They should soak seeds in distilled water, hydrogen peroxide, malt, humic acid, potassium nitrate, and fish emulsion, then record germination results over 4 days. Then, they must record the results and observe the growth of seeds.
Required Materials: Students will require Plastic zip bags, different types of foods(fruits, bread, cheese, meat), spray bottles, and water.
9. Effects of Microwave Radiation on Different Organisms
Students must observe microwave radiation's effects on fungi, bacteria, and plant life. It is recommended that students use microwave ovens to heat certain ingredients and fats in the food by radiating high levels of energy. On the other hand, other substances remain unaffected.
Required Materials: Students will require Radish seeds, baker's yeast, Petri dishes with agar, paper towels, bowls, gloves, a microwave, a notepad and a pen.
Also Check: CBSE Class 12 Economics Project Topics
List of 150+ CBSE Class 12 Biology Project Topics 2026
There are numerous biology project topics for class 12 for students to explore and learn. Candidates can go through some amazing topics to work on their CBSE class 12 biology project below.
- Effects of Different External Factors in Changing the Effectiveness of Various Antibiotics
- Can I Eat That
- Effectiveness of Various Spices in Promoting or Inhibiting the Spoilage Rate of Food
- There's a Germ Out There
- Study of the Effects of Green Tea on Oral Bacteria
- Mystery Behind Bacteria Levels in Gym Equipment
- Fungus Among Us
- Yeast Past Its Code Date
- Demolishing Dental Bacteria
- Does the Surface Clarity of Plastic Bottles Affect Solar Water Disinfection
- Effects of Temperature on Bacterial Pigmentation
- Isolation of Staphylococcus aureus from Raw and Pasteurised Milk
- Is Garlic Antibacterial
- How Much Bacteria Is on Your Retainer
- What Is the Best Way to Clean Your Toothbrush
- Study of Bacteria Growth in Varying Acidic Environments
- Which Acne Medications Are Most Effective
- Beleaguered Beef
- Study of the Health Benefits of Spicy Cooking
- What Are the Effects of Ultraviolet Light on Bacterial Mortality
- The Five-Second Rule
- Bacteria Affected by Ultraviolet Light
- Do Bacteria Like Gases
- Raw meat
- pH Tolerance of Microbes
- Which Ground Beef Has the Least Bacteria
- Do Different Dilutions of Disinfectants Affect the Development of Bacterial Resistance
- Study On Gene Therapy
- Study Of Effects Of Antibiotics On Microorganisms
- To Study the Coagulable And Non-Coagulable Milk Proteins
- Mitosis in Onion Root Tip Cells
- Cellulitis
- What Music Do Bacteria Enjoy the Most
- How Does Light Affect Yeast Drug Addiction
- Possible Effects of Maternal Behaviour on Foetal Development
- Pollination
- To Study Drug Resistance In Bacteria Using Antibiotics
- The Effect of Oil Spills on Oceans
- Effects of Fertilisers, Manure and Polythene on the rate of elongation of the Hypocotyl
- Spermatogenesis
- Study on Enzymes
- Coffee Addiction
- Effects of Fertilisers, Manure and Polythene on the rate of elongation of the Hypocotyl
- Alzheimer's And Dementia
- Microbes in Human Welfare
- Detailed Study on Infertility, Its Causes and Treatment
- Eye Diseases
- DNA Fingerprinting
- Recombinant DNA Technology In Today's Medicine
- How to See DNA with the Naked Eye
- Human Genome Project
- Dispersal of Seeds
- Harmful Effects of Mobile Radiation
- On Recent Diseases - Ebola
- Sickle Cell Anaemia and its Prevention
- How Cigarettes Affect Your Health
- Study on Probiotics and their Preparation
- The Way Blood Works
- Testing the toxicity of Marine Pollutants using Daphnia
- Antibiotics Naturally
- What is the Best Way to Disinfect a Toothbrush
- Erasing and Implanting Human Memory
- Do Price and Vitamin C Affect How Fast Fruits Rot
- Strawberry DNA Extraction
- Effect of Cannabis on the Human Body
- Ability of Curry and Cinnamon to Inhibit Bacterial Growth
- Which Cheese Grows Mould The Fastest
- Using Garden Mulch to Make a Bug Zoo
- Turning to Motor Learning
- Eye Disorders in Children and Adolescents
- Human Cloning: Another You?
- Thigmotropism In Tendrils
- Brush Away You Smile
- Eye Can See You
- Can Dog Drool Kill Germs
- Growing Yeast: Sugar Fermentation
- How Does Mould Grow
- How Does Microwave Radiation Affect Different Organisms
- What Effect Does Glucose Have on the Longevity of Cut Flowers
- Diffusion VS Food Colouring
- Microwave and Germination of Seeds
- Comparing Varying Levels of Oxygen Aeration in Increasing Plant Production
- Salt: Friend or Foe
- Cattails in the Water
- Cloning 101
- Heart Rate and Video Games
- Investigating Seed Tolerance for Freezing Temperatures
- Fun with Phosphorus
- What Angle of Impact Has the Most Effect on Making a Bruise
- Ultraviolet Radiation
- Do Rats Learn Faster with Peer Pressure
- Can You Make the Grade
- The Effect of Alkalis and Acids on Bacterial Growth
- Saving the World One Yard at a Time
- Yeast Reproduction in Sugar Substitutes
- Angina Pectoris
- Pedigree Analysis
- Urinalysis
- Ozone Depletion
- Does a Mouse Rely More on Its Spatial Memory or Vision
- Conserving Agricultural Irrigation Water by Controlling Transpiration Loss via Wind
- Effects of Ocean Water as an Irrigation Supplement on the Growth of Rice Seedlings
- How Does Music Affect Plant Growth
- Maintaining Correct Balance
- Effects of Diet on Blood Glucose
- Ammonia: The Passed Gas
- Do the Right and Left Ears Hear Notes Differently
- Got Stamina?
- Measuring Human Horsepower
- Factors Affecting Nodule Formation in Legumes
- What Do Plants Need Most
- Compost or Fertilizer
- Effect of Sugar on Bean Plant Growth
- Does the Colour of Light Affect Plant Growth
- Is Spinach Made in the Shade
- The Speed of Sprouting Seeds
- Ethyl Alcohol vs. E. coli
- Effects of Reading and Working on the Computer on Vision
- Blowing Off Carbon Dioxide
- Suck It Up
- Phytoremediation of Zinc
- Comparison of the Effectiveness of Organic Worm Castings
- Is It All Downhill from Here
- Sunless Sunflowers
- Does Greater Leaf Diameter Increase Transpiration Rate of Rose Geranium
- Physiology of Plants in a Simulated Martian Atmosphere
- Death in a Water Bath
- Nail-Patella Syndrome Phenotype Expression
- Effect of Pupil Dilation on Peripheral Vision
- Are Fingerprints Hereditary
- Effect of the Timing of the Application of Potassium on Antirrhinum
- Determining the Effects of Water Temperature and Exposure Terms on Seed Germination
- Effect of Color on Cherry Trees
- Hydroponics and Aeroponics
- Now You See It, Now You Don't
- Effect of Exercise on Blood Pressure and Pulse Rate
- Effects of Various Aromas on Animal Behaviour
- Effect of Ingested Fluid Temperature on Basal Body Temperature in Humans
- Family Fingerprints
- To Chew or Not to Chew
- Does Blood Pressure Affect Heart Rate
- Retinal Glare Recovery
- Whose Mouth Is Cleaner
- How Fibonacci Is Your Face
- Get a Head Start II
- Doggy Vision
- Does Oregano Oil Have an Antibiotic Effect
- Do Different Diets in Ruminant Animals Affect the Microorganism Colony Growth
- Does Beta Carotene Prevent Tumour Growth in Plants
- Growth Rate of Poa pratensis in Pure Humus
- Diabetes and Exercise
- The Power of Rat Senses
- Making of a Potpourri Fertiliser
- Which Colour is Dominant in Mice
- Does Varying Feed Affect the Milk of Lactating Caprines
- Are Mice Territorial
- Bioartificial Engineered Heart Tissue
- Effects on the Flow Rate as a Representation of Stroke Volume
- Do You Hear What I Hear
- Blood Pressure
Also Read: 100+ CBSE Class 12 Chemistry Investigatory Project Topics 2026
CBSE Class 12 Biology Project Format 2026
There are various formats on various boards that students can choose and follow for making their projects. Yet, in the CBSE board, there is a specific format for projects for CBSE class 12 projects that must be followed by the students. Candidates can go through the CBSE class 12 project format given below.
- Title of the investigatory project
- Aim
- Objectives
- Principle
- Materials needed
- Method
- Result
- Analysis and Interpretation
- Conclusion
- References
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