120+ Life Science Research Topics for High School Students

Life Science Research Topics for High School Students

Are you a high school student looking for an interesting topic for your life science research project? Life science is all about the study of living things, including plants, animals, and humans. It’s a fascinating field with so many different areas to explore.

To help you get started, we’ve put together a list of 120+ life science research topics for high school students. These topics are simple, fun, and perfect for high school students.


Choosing a research topic can be challenging, especially when you have so many options. The key is to find something that interests you. When you’re excited about your topic, doing the research and writing the paper becomes much easier. The topics below are categorised into various areas of life science to help you find your perfect match.

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120+ Life Science Research Topics for High School Students

Biology Basics

  1. Cell Structure and Function: How do cells work?
  2. DNA and Genetics: What makes you unique?
  3. Photosynthesis: How do plants make their food?
  4. Human Body Systems: How do our organs work together?
  5. Animal Behavior: Why do animals act the way they do?

Plants and Botany

  1. Plant Growth: What affects how plants grow?
  2. Medicinal Plants: Which plants have healing properties?
  3. Plant Reproduction: How do plants reproduce?
  4. Photosynthesis Process: How do plants convert sunlight into energy?
  5. Invasive Plant Species: How do non-native plants affect ecosystems?

Animals and Zoology

  1. Animal Habitats: Where do different animals live?
  2. Endangered Species: Why are some animals at risk of extinction?
  3. Animal Communication: How do animals talk to each other?
  4. Aquatic Life: What lives in our oceans and rivers?
  5. Bird Migration: Why do birds fly south for the winter?

Human Body and Health

  1. Nutrition: What should we eat to stay healthy?
  2. Diseases and Prevention: How can we avoid getting sick?
  3. Human Anatomy: How are our bodies structured?
  4. Exercise and Fitness: Why is physical activity important?
  5. Mental Health: How can we take care of our minds?

Microorganisms and Microbiology

  1. Bacteria: What are these tiny organisms and what do they do?
  2. Viruses: How do viruses affect living things?
  3. Fungi: What role do fungi play in the ecosystem?
  4. Microorganisms in Food Production: How do they help make yogurt and cheese?
  5. Antibiotics: How do we fight bacterial infections?

Ecology and Environment

  1. Ecosystems: How do living and non-living things interact in nature?
  2. Climate Change: How is our planet changing and why?
  3. Pollution: What are the effects of pollution on living things?
  4. Conservation: How can we protect endangered species?
  5. Renewable Energy: What are sustainable energy sources?

Genetics and Evolution

  1. Genetic Mutations: What are they and how do they happen?
  2. Evolutionary Theory: How do species change over time?
  3. Heredity: How are traits passed from parents to children?
  4. Genetic Engineering: What is it and how is it used?
  5. Human Genome Project: What did we learn from mapping human DNA?

Plant and Animal Interaction

  1. Pollination: How do bees help plants reproduce?
  2. Symbiosis: How do different species live together?
  3. Food Chains: How does energy flow through an ecosystem?
  4. Predator-Prey Relationships: How do predators and prey affect each other?
  5. Invasive Species: How do they impact native species?


  1. GMOs: What are genetically modified organisms?
  2. Cloning: How does cloning work?
  3. Stem Cell Research: What are stem cells and why are they important?
  4. Bioremediation: How do we use living things to clean up the environment?
  5. CRISPR Technology: What is CRISPR and how does it work?

Human Development and Behavior

  1. Child Development: How do children grow and learn?
  2. Teenage Brain: What happens in our brains during adolescence?
  3. Sleep: Why do we need sleep and what happens when we don’t get enough?
  4. Memory: How do we remember things?
  5. Emotions: How do we feel and express emotions?

Marine Biology

  1. Coral Reefs: What are they and why are they important?
  2. Marine Conservation: How can we protect ocean life?
  3. Deep Sea Creatures: What lives in the deepest parts of the ocean?
  4. Ocean Pollution: How does pollution affect marine life?
  5. Whale Behavior: How do whales communicate and navigate?

Plants and Photosynthesis

  1. Chlorophyll: What makes plants green and helps them photosynthesize?
  2. Plant Adaptations: How do plants survive in different environments?
  3. Hydroponics: How can we grow plants without soil?
  4. Plant Diseases: What causes plants to get sick?
  5. Carnivorous Plants: How do plants like the Venus flytrap catch insects?

Insects and Entomology

  1. Bees and Pollination: Why are bees important for plants and humans?
  2. Insect Life Cycles: How do insects grow and change?
  3. Insect Communication: How do ants and other insects talk to each other?
  4. Beneficial Insects: Which insects are helpful to humans?
  5. Insect Adaptations: How do insects survive in their environments?


  1. Heart Function: How does the human heart work?
  2. Brain Function: How does the brain control the body?
  3. Muscles and Movement: How do our muscles help us move?
  4. Digestive System: How does our body process food?
  5. Respiratory System: How do we breathe?

Disease and Medicine

  1. Vaccines: How do vaccines protect us from diseases?
  2. Antibiotic Resistance: Why are some bacteria becoming resistant to antibiotics?
  3. Cancer Research: What causes cancer and how can it be treated?
  4. Diabetes: What is diabetes and how can it be managed?
  5. Heart Disease: What causes heart disease and how can it be prevented?

Environmental Science

  1. Biodiversity: Why is biodiversity important for ecosystems?
  2. Deforestation: How does cutting down forests affect the planet?
  3. Water Pollution: How does pollution affect our water sources?
  4. Recycling: How can recycling help the environment?
  5. Sustainable Agriculture: How can we farm in ways that are good for the environment?

Plant and Animal Genetics

  1. Plant Breeding: How do we create new plant varieties?
  2. Animal Breeding: How do we breed animals for specific traits?
  3. Genetic Disorders: What are genetic disorders and how do they occur?
  4. Genetic Counseling: How can genetic counseling help families?
  5. Genomics: What is the study of genomes?

Human Health and Wellness

  1. Nutrition and Diet: How does what we eat affect our health?
  2. Exercise Physiology: How does exercise benefit the body?
  3. Mental Health Disorders: What are common mental health disorders?
  4. Public Health: How do we protect the health of communities?
  5. Immunology: How does the immune system protect us from disease?

Evolution and Natural Selection

  1. Darwin’s Theory: What is natural selection?
  2. Speciation: How do new species form?
  3. Adaptation: How do organisms adapt to their environments?
  4. Fossil Record: What can we learn from fossils?
  5. Human Evolution: How did humans evolve over time?

Plant Ecology

  1. Forest Ecosystems: How do forests support life?
  2. Desert Plants: How do plants survive in the desert?
  3. Wetland Plants: What types of plants live in wetlands?
  4. Urban Ecology: How do plants and animals live in cities?
  5. Plant-Animal Interactions: How do plants and animals depend on each other?

Animal Physiology

  1. Circulatory System: How do animals circulate blood and nutrients?
  2. Nervous System: How do animals sense and respond to their environment?
  3. Reproductive System: How do animals reproduce?
  4. Digestive System: How do animals digest food?
  5. Respiratory System: How do animals breathe?

Biotechnology Applications

  1. Biofuels: How can we use living things to produce energy?
  2. Bioplastics: How can we make plastics from biological materials?
  3. Synthetic Biology: What is synthetic biology and what can it do?
  4. Pharmaceuticals: How are drugs developed from living organisms?
  5. Agricultural Biotechnology: How can biotechnology improve farming?

Conservation Biology

  1. Wildlife Corridors: How do they help animal populations?
  2. Habitat Restoration: How can we restore damaged ecosystems?
  3. Conservation Genetics: How can genetics help save endangered species?
  4. Marine Protected Areas: How do they help ocean life?
  5. Conservation Policies: What laws protect wildlife and habitats?

Emerging Diseases

  1. Zoonotic Diseases: How do diseases jump from animals to humans?
  2. Pandemics: How do diseases spread worldwide?
  3. Disease Vectors: How do mosquitoes and other vectors spread disease?
  4. Global Health: How do we address health issues around the world?
  5. Infectious Disease Control: How can we prevent the spread of infectious diseases?

Human Interaction with the Environment

  1. Urbanization: How does building cities affect the environment?
  2. Agricultural Impact: How does farming affect the environment?
  3. Climate Action: What can we do to combat climate change?
  4. Sustainable Living: How can we live more sustainably?
  5. Environmental Education: Why is it important to learn about the environment?

Also read: 20 Reasons Why Students Fail Exams


These 120+ life science research topics are just the beginning. Choose a topic that excites you and dive into your research. Remember, science is all about curiosity and discovery. Have fun exploring the amazing world of life science!

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