Winning Biology Science Fair Projects – For All Grades

Are you looking for the best biology science fair projects? Here you will find our most popular biology science project ideas for your next science fair.

Unlock the secrets of the natural world with these winning biology science fair project ideas.

Whether you’re interested in microorganisms, plant growth, or human anatomy, this list has something for everyone.

These project ideas are not only informative and intriguing, but also provide an opportunity to showcase your scientific skills and understanding.

Get ready to impress your judges and inspire your peers with these top-notch biology science fair project ideas.

Biology Science Fair Projects

Biology Science Fair Ideas – Grade Levels

Select the grade level specific to your requirement to go over the list of exciting and unique science fair projects.

Biology Science Fair Projects For Middle School 

Biology Science Fair Projects For High School

Award Winning Biology Science Fair Projects

Check out our Winning list of Physics Science Fair Projects & Chemistry Science Fair Projects

Biology Science Fair Projects For Middle School 

Here is the list of our science fair projects designed specifically for middle school students to make them learn Biology with fun!

Biology Science Fair Projects For Middle School 

Biology Science Fair Projects For 5th Grade

1. Animal Pyramid Working Model for land, air and water

2. Making a plant cell model

3. Making conservation of bird model

4. Making the life cycle model of a bird

5. Making a frog life cycle model

6. Making a 3-d model of the human digestive system

8. Making a 3-D Spinal cord model

9. Making a model of a section of the tooth 

10. Making a 3-d model of mitochondria

11. Making a 3D model coronavirus

12. Fight coronavirus model

13. Making a 3D model of a fungi

14. Colour Changing Flowers Experiment

15. Demonstrating different parts of a plant

16. Making a 3D model of amoeba

17. Making a 3-D root structure model

Biology Science Fair Projects For 6th Grade

18. Growing plants without soil

19. Transpiration bell jar experiment

20. Building a ripe produce detector

21. Making a model of the food chain

22. Prove respiration in plants experiment

23. ‘Plants on the move’ experiment

24. Demonstrating geotropism in plants

25. Magic Bending Bone Experiment

26. Measuring the rate of photosynthesis

27. 3D Model of Ladybug Lifecycle

28. Testing for starch in plants

29. Demonstrating the sticking power of germs

30. Working model of photosynthesis

31. Seed germination experiment

32. Making a candy animal cell

33. 3-D model of the life cycle of a butterfly

34. Lifecycle of a Silkworm

Biology Science Fair Projects For 7th Grade

35. Making a 3-d model of the human circulatory system

36. Making a 3-d model of the human respiratory system

37. Making the working model of a kidney

38. Demonstrating how camouflage protects insects from their predators

39. Creating biofuel from waste

40. Osmosis experiment using potato

41. Making a pulse counter

42. Working model of the human heart

43. Evaporation experiment

44. Brain on the plate using clay

45. A model of different types of pollution

46. Thirsty flower experiment

47. Demonstrating the effect of food colouring on plant cell growth

48. Microwave Water Plant Experiment

Biology Science Fair Projects For 8th Grade

49. Making a neuron model

50. 3D working model of the human eye

51. Making an ozone layer model

52. Diffusion experiment

53. Model of a DNA strand

54. Demonstrating how animals stay warm

55. How do penguins stay warm and dry

56. Making a heartbeat clock

57. Effect of pepper extract on the growth of sunflower

58. Making a 3-D pollination model

59. Types of blood groups in human beings

60. Explaining Sickle Cell Anemia and its Prevention

61. Making a 3D model of the female reproductive system

Biology Science Fair Projects For High School

Below is a list of our Biology science fair projects that demands a higher level of thought process and may need adequate safety measures for flawless execution. 

Biology Science Fair Projects For High School

Biology Science Fair Projects For 9th Grade

62. Demonstrating anaerobic respiration in plants

63. Making a 3-D model of chromosome

64. Leaf Chromatography experiment

65. Wet and dry worm experiment

66. Making a bio-luminescent lamp

67. Making a model of the water cycle

68. Mall’s half-leaf experiment

69. Easy capillary action movement

70. Demonstrating the importance of cell membrane using a balloon

71. Leaves changing colour experiment

72. Making a seed board

Biology Science Fair Projects For 10th Grade

73. Making a 3-D model of a section of skin

74. Making an animal diorama

75. Creating biodegradable plastic

76. Making a 3D biodiversity model

77. Demonstrating leaves give out oxygen

78. Making a pollution catcher using petroleum jelly  

Biology Science Fair Projects For 11th Grade

79. Finding out whether leaf size matters in plant transpiration rate

80. Does cigarette smoke affect plant growth

81. Do carnivores plants prefer certain types of insects

82. Create a Robotic Articulated Hand

83. Finding out can plant be genetically resistant to heavy metals

84. Demonstrate how the coronavirus affects our cells

85. Banana DNA extraction

86. Explaining what Genetically Modified Organisms

87. Demonstrating the usefulness of microorganisms using a 3D model

Biology Science Fair Projects For 12th Grade

88. Making a 3-D Diaphragm model

89. Hydroponics farming working model

90. Hemodialysis working model

91. Making a miniature greenhouse farming model

92. Working model of a human arm

93. Demonstrating how DNA fingerprints are unique

Biology Science Fair Projects – College Level

94. How corona vaccine works

95. Miniature botanical garden model

96. 3-D drip-irrigation model

97. Making a solar-operated seed-sowing machine

98. Making a vertical farming model

99. Growing plants in micro-gravity

100. Uncovering hidden sugar in food

101. Finding out why all medicines are not pills.

102. Making a sea habitat diorama

Award Winning Biology Science Fair Projects

It is true that some Biology projects at science fairs are innovative and end up winning awards. Here, look at some award-winning science fair projects that may inspire and excite you or instil a newfound love for Biology.

Award Winning Biology Science Fair Projects

103. Making a plastoscope with plastic bottles

104. Demonstrating the role of planktons in marine life

105. Potential of rose petals in boosting the efficiency of solar cells

106. Demonstrating the importance of handwashing

107. Demonstrating the side of the leaf that takes in carbon-dioxide

108. Harvesting transparent and flexible energy using Bi-Layer Graphene

Try our list of science fair resources for project boards and project labels to present your winning science fair project.

Biology Science Fair Projects For All Standard

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