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Science Fair Project Ideas

Education.com has assembled a vast collection of science fair project ideas written by science teachers, professional scientists, and educational consultants on popular science fair topics ranging from physics and chemistry to biology and even sociology. We offer free science fair ideas suitable for every grade level, be it preschool, kindergarten, elementary school, middle school, or high school. Check the boxes in the sidebar to filter your results, or use the search bar to find that perfect science fair project or experiment your child will be sure to love.

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1,616 results
1,616 results
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Negative or Positive Ads
Science project
Negative or Positive Ads
Science fair project in which you will stage an election campaign to determine whether people are more swayed by a positive ad or negative ad.
Middle school
Social studies
Science project
Food Circles and Nutrient Density
Science project
Food Circles and Nutrient Density
Science fair project which will teach you more about the foods that you eat, and learn which ones are healthier choices.
5th grade
Science
Science project
Ocean Currents
Science project
Ocean Currents
Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.
5th grade
Science
Science project
Popping Balloons
Science project
Popping Balloons
Science fair project which uses a camera to observe the surface of a balloon in the moment of its explosion.
Middle school
Science
Science project
Rule Breakers
Science project
Rule Breakers
Science fair project which determines whether people are more likely to follow rules if they are easy to understand.
5th grade
Social studies
Science project
Six Degrees of Separation
Science project
Six Degrees of Separation
Science fair project which determines whether it is numerically possible to be connected to every person on the earth within six degrees of separation.
5th grade
Science
Science project
Species vs. Breed
Science project
Species vs. Breed
Science fair project which breeds a pair of mice, a pair of rats and a mouse and a rat in order to learn about the difference.
5th grade
Science
Science project
Speedy Shoes
Science project
Speedy Shoes
Science fair project which evaluates different athletic shoes in order to find out whether any of them affect a person's ability to run.
5th grade
Science
Science project
Magic Glass of Water
Science project
Magic Glass of Water
Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.
3rd grade
Science
Science project
Mass, Volume and Density
Science project
Mass, Volume and Density
Demonstrate the relationship between mass, volume and density. Measure displaced water, and weigh object to calculate mass and density.
High school
Science
Science project
Passive Solar Heating
Science project
Passive Solar Heating
examine how passive solar heating works, measure temperature in a parked car on a sunny day. ways to use passive solar heating as an alternative, energy
4th grade
Science
Science project
Raw vs. Cooked Foods
Science project
Raw vs. Cooked Foods
Use a bomb calorimeter to measure and calculate the amount of energy (calories) within various foods. ignite food samples, calculate change in temperature.
Middle school
Science
Science project
Rolling Friction
Science project
Rolling Friction
Examine how the tire treads of a bicycle affect its rolling frictional force. Change tires, test speed performance on different terrains.
Science
Science project
Siphons
Science project
Siphons
Create uphill flow of water by using a siphon. Create vacuum by suctioning one end of tube, and submerge it under water. Watch the direction the water travels.
Science
Science project
Comparing Leaf Size and Shape
Science project
Comparing Leaf Size and Shape
Science fair project that compares tree leaf size and shape based on the leaf's position in the tree. Is their is a noticeable difference between high and low?
Middle school
Science
Science project
Comparing Leaf Stomata
Science project
Comparing Leaf Stomata
Science fair project idea that compares number and relative sizes of leaf stomata. Collect leaves of plant species, identify, observe stomata with microscope.
Middle school
Science
Science project
Which Seeds Can Survive a Harsh Winter?
Science project
Which Seeds Can Survive a Harsh Winter?
Determine which seeds are most likely to survive harsh winter conditions (low temperatures).
High school
Science
Science project
Direct Or Indirect?
Science project
Direct Or Indirect?
Determine how good we are at direct and indirect observation.
Science
Science project
Fresh Or Canned Calories?
Science project
Fresh Or Canned Calories?
Determine whether fresh vegetables have more calories or less calories than canned vegetables.
High school
Science
Science project
Making Pictures With Dots
Science project
Making Pictures With Dots
Check out this science project idea that will have your kid investigate how dots (also known as pixels) are used to create digital photographs.
Science
Science project
Febreze It Away!
Science project
Febreze It Away!
Determine whether the application of Febreeze will lower the bacterial count.
High school
Science
Science project
Separate That Solution!
Science project
Separate That Solution!
Determine how we can separate the components of a solution
Science
Science project
Fungi Biodiversity
Science project
Fungi Biodiversity
Science fair project that compares the biodiversity of fungi in different ecosystems by identifying species of fungi.
5th grade
Science
Science project
Invertebrate Ecology
Science project
Invertebrate Ecology
Science fair project determines relationship between number and variety of insects and spiders by collecting and counting invertebrates in a ecosystem.
5th grade
Science
Science project
Leaf Pigments
Science project
Leaf Pigments
Science fair project that compares leaf pigments of various tree species. Which tree species do you think will have the most pigments and why?
Middle school
Science
Science project

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