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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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Science Fair Project Ideas
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How do cold packs work? Explore endothermic reactions by comparing the temperature change that results from various chemicals added to water to find out!
The Science Behind a Cold Pack
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.
The Best Stain Remover for Clothes: Testing Laundry Stain Removal
This science fair project will help students learn about non-vascular plants, such as mosses.
Water and Mosses
Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.
How to Tell Time by the Sun
How do the phases of the Moon and gravity cause spring tides and neap tides? Does the Sun play a role in the tides? Figure it out in this fun science project!
How Do the Phases of the Moon Affect the Tides?
In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.
Popcorn Pumice: Exploring Different Rock Densities
Kids make a paperclip perform an act of magnetic levitation and test how effective various materials are at magnetic shielding in this science fair project.
Magnetic Levitation
This science fair project teaches students the differences between fruits and vegetables.
Is it a Fruit or a Veggie?
In this science experiment, do tensile strength test on fishing line, a strand of hair, a rubber band, and any other materials you're curious about!
Tensile Strength Test
Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.
Forensic Entomology and the Life Cycle of the Blowfly
In this free science fair project idea, kids will conduct an easy electrolysis of water experiment to test solutions of salt, baking soda, tap water, and more.
Electrolysis of Water Experiment
Do dogs understand English? Kids will find out with one of our favorite dog science fair projects that tests how dogs process human language and other cues.
Do Dogs Understand English?
Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.
Thermal Conductivity of Metals: Which Metal Is the Best Conductor of Heat?
Kids make an electromagnet in this electromagnetic induction experiment to learn about induction, current, and the right-hand rule.
Electromagnetic Induction Experiment
High school students learn about resistance, resistivity, and if copper is the best metal conductor in this great physics science fair project idea.
Resistivity: Is Copper the Best Metal Conductor?
In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!
Self-Inflating Balloons
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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