Science Fair Project Ideas

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Are Dogs Colorblind?
Are Dogs Colorblind?
Science Project
Are Dogs Colorblind?
What colors can dogs see? Do they only have black and white vision, or can they see other colors too? Find out in this cool science experiment!
Science
Science Project
The Chemistry of Dyeing Easter Eggs
Science Project
The Chemistry of Dyeing Easter Eggs
What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!
4th grade
Science
Science Project
Solar Eclipse Model
Science Project
Solar Eclipse Model
Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.
1st grade
Science
Science Project
Why Does the Moon Glow?
Science Project
Why Does the Moon Glow?
The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!
3rd grade
Science
Science Project
What Causes the Seasons to Change?
Science Project
What Causes the Seasons to Change?
What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.
4th grade
Science
Science Project
What Are the Layers of the Earth?
What Are the Layers of the Earth?
Science Project
What Are the Layers of the Earth?
Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.
2nd grade
Science
Science Project
Apparent Movement of the Sun
Science Project
Apparent Movement of the Sun
The apparent movement of the sun has been used to keep time since the bronze age. In this science fair project, kids plot solar time against mean solar time.
Science
Science Project
Barycenter
Barycenter
Science Project
Barycenter
What is a barycenter? Kids learn how gravity and mass influence the orbit of binary systems like planets and moons or stars and planets in this cool experiment.
Science
Science Project
Kepler's 3rd Law: Orbital Period vs. Distance
Kepler's 3rd Law: Orbital Period vs. Distance
Science Project
Kepler's 3rd Law: Orbital Period vs. Distance
This fun science fair project for 8th grade demonstrates what Kepler's 3rd law predicts about a planet's orbital period and its distance from the sun.
Science
Science Project
Surface Features of the Moon Model
Science Project
Surface Features of the Moon Model
Explore the craters, maria, and highlands on the surface of the Moon! In this fun science project you'll create a 3-D model of the moon using paper mache.
5th grade
Science
Science Project
Air Density, Convection, and the Movement of Air Molecules
Air Density, Convection, and the Movement of Air Molecules
Science Project
Air Density, Convection, and the Movement of Air Molecules
In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.
5th grade
Science
Science Project
Heat Convection in Liquids
Heat Convection in Liquids
Science Project
Heat Convection in Liquids
In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.
5th grade
Science
Science Project
The Rings of Saturn: A Scale Model
The Rings of Saturn: A Scale Model
Science Project
The Rings of Saturn: A Scale Model
Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!
3rd grade
Science
Science Project
Floating Paper Clip
Science Project
Floating Paper Clip
In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.
2nd grade
Science
Science Project
Hero's Engine: Example of Newton's Third Law
Hero's Engine: Example of Newton's Third Law
Science Project
Hero's Engine: Example of Newton's Third Law
In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.
2nd grade
Science
Science Project
What Causes Dew?
What Causes Dew?
Science Project
What Causes Dew?
In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.
4th grade
Science
Science Project
How Does Frost Form?
How Does Frost Form?
Science Project
How Does Frost Form?
How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.
3rd grade
Science
Science Project
How Do Icicles Form?
Science Project
How Do Icicles Form?
How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.
3rd grade
Science
Science Project
The Limewater Carbon Dioxide Test
The Limewater Carbon Dioxide Test
Science Project
The Limewater Carbon Dioxide Test
Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.
3rd grade
Science
Science Project
Specific Heat of Water vs. Specific Heat of Sand
Specific Heat of Water vs. Specific Heat of Sand
Science Project
Specific Heat of Water vs. Specific Heat of Sand
What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.
5th grade
Science
Science Project
Reynolds Number: Laminar and Turbulent Flow
Science Project
Reynolds Number: Laminar and Turbulent Flow
Do thick liquids flow faster than thin liquids? Examine water and syrup's viscosity and inertia to learn about the Reynolds Number, laminar and turbulent flow.
Science
Science Project
Potato Chip Science: How Greasy Are Your Potato Chips?
Potato Chip Science: How Greasy Are Your Potato Chips?
Science Project
Potato Chip Science: How Greasy Are Your Potato Chips?
How greasy are your potato chips? Students will use a reliable method to quantify greasiness and compare different brands in this great science fair project.
4th grade
Science
Science Project
Why Does Honey Crystallize?
Why Does Honey Crystallize?
Science Project
Why Does Honey Crystallize?
Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.
3rd grade
Science
Science Project
The Best Stain Remover for Clothes: Testing Laundry Stain Removal
The Best Stain Remover for Clothes: Testing Laundry Stain Removal
Science Project
The Best Stain Remover for Clothes: Testing Laundry Stain Removal
What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.
4th grade
Science
Science Project
Microwaving Liquids: Dielectric Heating
Science Project
Microwaving Liquids: Dielectric Heating
Explore how dielectric heating comes into play when microwaving various liquids in this science project. This test will help you understand how microwaves work!
4th grade
Science
Science Project

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.