Top 120 Science Fair Project Ideas for 8th Grade

Choosing the right science fair project can be a fun and educational experience. Are you an 8th grader looking for an amazing science fair project? You’re in the right place! Science fairs are a fantastic way to explore your interests, learn new things, and show off your creativity.

Here in this blog we will list down 120 science fair project ideas for 8th grade. This list of project ideas is simple and exciting that you can choose from.

120 Science Fair Project Ideas for 8th Grade

Environmental Science Projects

1. Water Filtration System: Build a basic water filter using sand, charcoal, and gravel to see how well it cleans dirty water.
2. Solar Oven: Create a solar oven to see if you can cook food using only the sun’s energy.
3. Composting: Start a compost bin and observe how different materials decompose.
4. Plant Growth in Different Soils: Grow the same type of plant in different soil types to see which is best.
5. Acid Rain Effects: Study how acid rain affects plant growth.
6. Recycling Paper: Learn how to recycle paper at home and compare the quality of recycled paper to new paper.
7. Oil Spills and Cleanup: Simulate an oil spill in water and test different methods of cleaning it up.
8. Water Conservation: Design a system to reduce water use in your home or school.
9. Renewable Energy: Build a small wind turbine or solar panel and measure how much electricity it generates.
10. Greenhouse Effect: Create a miniature greenhouse to see how different conditions affect plant growth.

Also read: Quantitative Research Topics for Senior High School Students in the Philippines

Biology Projects

1. Plant Responses: Test how plants respond to light, gravity, or touch.
2. Bacterial Growth: Investigate how different environments affect bacterial growth.
3. Fruit Ripening: Study the effects of different gases on fruit ripening.
4. Enzyme Activity: Explore how temperature affects enzyme activity.
5. Human Senses: Test which senses are most important for taste.
6. Memory and Learning: Study different techniques to improve memory.
7. Fungus Growth: Investigate the growth of mold on different types of bread.
8. Photosynthesis: Measure how light intensity affects the rate of photosynthesis in plants.
9. Regeneration in Planaria: Cut planaria worms and observe how they regenerate.
10. Genetics: Use simple genetics to predict the traits of offspring from parent plants or animals.

Chemistry Projects

1. Chemical Reactions: Test how temperature affects the rate of a chemical reaction.
2. pH Levels: Measure the pH levels of various household substances.
3. Electrolysis of Water: Separate water into hydrogen and oxygen gases using electricity.
4. Crystal Growth: Grow crystals from different substances and compare them.
5. Soap Making: Make your own soap and test its cleaning power.
6. Acid-Base Reactions: Create a homemade volcano using baking soda and vinegar.
7. Rusting: Investigate how different conditions affect the rusting of iron.
8. Density Experiments: Create density columns using different liquids.
9. Biodegradability: Test how different materials biodegrade over time.
10. Chromatography: Use paper chromatography to separate different pigments in ink or plants.

Physics Projects

1. Laws of Motion: Create a simple machine to demonstrate Newton’s laws of motion.
2. Aerodynamics: Test how the shape of an object affects its flight.
3. Electric Circuits: Build a basic electric circuit and test different materials as conductors and insulators.
4. Magnetism: Explore how different materials affect the strength of a magnet.
5. Buoyancy: Investigate why some objects float while others sink.
6. Gravity: Test how gravity affects objects of different masses.
7. Simple Machines: Create models of simple machines (like levers and pulleys) and demonstrate how they work.
8. Sound Waves: Explore how sound travels through different materials.
9. Light Refraction: Test how light bends through different substances.
10. Heat Transfer: Study how different materials conduct heat.

Earth Science Projects

1. Rock Cycle: Create a model of the rock cycle using different types of candy.
2. Weather Patterns: Track local weather patterns and make predictions.
3. Volcano Models: Build a model volcano and simulate an eruption.
4. Erosion: Study how water and wind cause erosion.
5. Earthquake Models: Create a simple model to demonstrate how earthquakes occur.
6. Soil Erosion: Test how different types of vegetation prevent soil erosion.
7. Meteorology: Build simple weather instruments like a barometer or anemometer.
8. Tsunami Simulation: Model how tsunamis form and move.
9. Water Cycle: Create a miniature water cycle in a bag.
10. Plate Tectonics: Make a model to show how plate tectonics work.

Also read: Qualities of a Good Project Manager

Engineering Projects

1. Bridges: Design and build different types of bridges and test their strength.
2. Catapults: Build a catapult and test how far it can launch objects.
3. Rube Goldberg Machine: Create a complex machine to perform a simple task.
4. Robotics: Build a simple robot using a kit.
5. Wind Turbines: Design and test a wind turbine.
6. Solar Cars: Build a small car powered by solar energy.
7. Egg Drop: Create a device to protect an egg from breaking when dropped.
8. Water Wheel: Build a water wheel to generate energy.
9. Pneumatics: Design a simple pneumatic system to perform a task.
10. Structures: Test the strength of different building materials.

Behavioral Science Projects

1. Social Media Impact: Study how social media use affects sleep or mood.
2. Group Behavior: Observe how different group sizes affect behavior in animals or people.
3. Decision Making: Investigate how people make decisions under pressure.
4. Stress Effects: Study how different activities affect stress levels.
5. Learning Methods: Compare different methods of learning new information.
6. Body Language: Explore how body language affects communication.
7. Memory Testing: Test memory using different types of tests or stimuli.
8. Attention Span: Measure attention span under different conditions.
9. Color Psychology: Study how colors affect mood or behavior.
10. Peer Pressure: Investigate how peer pressure affects decision making.

Computer Science Projects

1. Coding Basics: Create a simple game or app using basic coding languages.
2. Website Design: Build a website on a topic of interest.
3. App Development: Develop a simple mobile app.
4. Robotics Programming: Program a small robot to complete a task.
5. Data Analysis: Use software to analyze a set of data.
6. Cyber Security: Study basic principles of cyber security.
7. Artificial Intelligence: Create a simple AI program.
8. Animation: Make an animated story or movie.
9. Digital Art: Use software to create digital artwork.
10. Virtual Reality: Explore how virtual reality works and create a simple VR experience.

Health Science Projects

1. Healthy Eating: Investigate how different diets affect health.
2. Exercise Impact: Study how different types of exercise affect the body.
3. Sleep Study: Research how different factors affect sleep quality.
4. Heart Rate: Measure how different activities affect heart rate.
5. Germ Transmission: Explore how germs spread and how to prevent it.
6. Nutrition: Compare the nutritional content of different foods.
7. Hydration: Study the effects of hydration on physical performance.
8. Vision Tests: Investigate how different factors affect vision.
9. Hygiene: Study the effectiveness of different handwashing techniques.
10. Mental Health: Research how different activities impact mental health.

Astronomy Projects

1. Moon Phases: Track and explain the phases of the moon.
2. Star Charts: Create a star chart to identify constellations.
3. Planetary Motion: Model the motion of planets in the solar system.
4. Telescope Building: Build a simple telescope and observe the night sky.
5. Meteor Tracking: Track and record meteor sightings.
6. Solar System Model: Make a scale model of the solar system.
7. Sunspot Observation: Study sunspots and their patterns.
8. Lunar Craters: Model how lunar craters are formed.
9. Space Travel: Research the challenges of space travel.
10. Comet Simulation: Create a model to show how comets form and travel.

Energy Projects

1. Battery Life: Compare the life of different types of batteries.
2. Solar Energy: Measure how different factors affect solar panel efficiency.
3. Wind Energy: Study how blade design affects wind turbine efficiency.
4. Hydropower: Create a model of a hydroelectric dam.
5. Energy Conservation: Investigate ways to reduce energy use at home.
6. Fuel Efficiency: Test how different fuels affect energy output.
7. Thermal Insulation: Study which materials are best for insulating heat.
8. Energy Storage: Compare different methods of storing energy.
9. Geothermal Energy: Model how geothermal energy can be harnessed.
10. Kinetic Energy: Explore how kinetic energy is converted to other forms.

Mathematics Projects

1. Probability: Study the probabilities in different games of chance.
2. Statistics: Collect and analyze data on a topic of interest.
3. Geometry: Explore geometric shapes and their properties.
4. Algebra: Create and solve algebraic equations based on real-life situations.
5. Patterns: Investigate patterns in nature or mathematics.
6. Graph Theory: Study how different graphs are used in computer science.
7. Mathematical Models: Create a model to predict an outcome using math.
8. Number Theory: Explore interesting properties of numbers.
9. Fibonacci Sequence: Investigate the Fibonacci sequence in nature.
10. Math in Sports: Analyze how math is used in different sports.

Also read: How Does Education Contribute to Community Development

Final words

This list of 120 project ideas covers a wide range of topics, from environmental science and biology to engineering and computer science. No matter what your interests are, there’s something here for you.

Remember, the best project is one that excites you and makes you want to learn more. So, pick a project that sparks your curiosity, gather your materials, and get ready to explore the fascinating world of science. Good luck, and have fun at your science fair!