Science Fair Project Ideas

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1,593 filtered results
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Melting Crayons
Melting Crayons
Science Project
Melting Crayons
Crayons aren't just good for creating colorful masterpieces -- they're also great for science!
3rd grade
Science
Science Project
Naked Egg
Naked Egg
Science Project
Naked Egg
While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!
3rd grade
Science
Science Project
Baking Soda and Vinegar Balloon
Baking Soda and Vinegar Balloon
Science Project
Baking Soda and Vinegar Balloon
How powerful is the reaction between baking soda and vinegar? Find out here!
3rd grade
Science
Science Project
The Placebo Effect
The Placebo Effect
Science Project
The Placebo Effect
Test your friends to find out if you can replicate the placebo effect's incredible results.
2nd grade
Science
Science Project
Floating Eggs: A Pre-Breakfast Experiment
Floating Eggs: A Pre-Breakfast Experiment
Science Project
Floating Eggs: A Pre-Breakfast Experiment
Before you get ready for a delicious scramble or omelet, add a bit of science to your morning routine!
2nd grade
Science
Science Project
Growing in the Dark: Plants and Light
Growing in the Dark: Plants and Light
Science Project
Growing in the Dark: Plants and Light
Plants and light seem to be good buddies, but how far does the friendship really go?
2nd grade
Science
Science Project
Soil Space: A Crowded Science
Soil Space: A Crowded Science
Science Project
Soil Space: A Crowded Science
Do plants get crowded? Have your curious kid investigate how plants respond if they're forced to grow together in a confined space.
2nd grade
Science
Science Project
Homemade Cleaners: Getting Squeaky Clean
Homemade Cleaners: Getting Squeaky Clean
Science Project
Homemade Cleaners: Getting Squeaky Clean
Cleaning can be a chore, but not with this sudsy experiment!
3rd grade
Science
Science Project
Bird Space
Bird Space
Science Project
Bird Space
Discover flight initiation distance as you play around in the park with this fun bird watching project!
3rd grade
Science
Science Project
Soil pH: Acid or Alkaline?
Soil pH: Acid or Alkaline?
Science Project
Soil pH: Acid or Alkaline?
Test out the pH levels of soil in your backyard versus soil in more wild environments to solve this science case.
4th grade
Science
Science Project
Oxygen in Water: A Bubbly Science
Oxygen in Water: A Bubbly Science
Science Project
Oxygen in Water: A Bubbly Science
Sure, you already know that water is made up of hydrogen and oxygen, but did you know that oxygen levels differ in different types of water?
Science
Science Project
Gravitropism
Gravitropism
Science Project
Gravitropism
What's the science behind those out-of-sight roots? Find out if you can trick roots into growing in different directions.
2nd grade
Science
Science Project
Candy pH
Candy pH
Science Project
Candy pH
Take a dive into the candy jar with this yummy science experiment.
4th grade
Science
Science Project
Sand Bridge
Sand Bridge
Science Project
Sand Bridge
Future engineers, unite! Discover how to keep a sandcastleâs bridge from falling into the moat.
4th grade
Science
Science Project
Candy or Medicine?
Candy or Medicine?
Science Project
Candy or Medicine?
Uh-oh! Is that a pill sitting on the counter or a piece of candy?
1st grade
Science
Science Project
Speaking Cat
Speaking Cat
Science Project
Speaking Cat
Take a closer look at your furry friend (or the furry friend of a neighbor -- with permission) to discover if communication exists between cats and humans.
2nd grade
Science
Science Project
Do It Yourself Weather!
Do It Yourself Weather!
Science Project
Do It Yourself Weather!
This science project challenges students to take learned information about weather and climate control and apply it to come up with creative ideas of their own.
Science
Science Project
Testing the Solubility of Common Liquid Solvents
Testing the Solubility of Common Liquid Solvents
Science Project
Testing the Solubility of Common Liquid Solvents
In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.
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.