Science Fair Project Ideas

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1,590 filtered results
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Crayon Rock Cycle Experiment
Crayon Rock Cycle Experiment
Science Project
Crayon Rock Cycle Experiment
Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?
3rd grade
Science
Science Project
Watching Birds at a Sit Spot
Watching Birds at a Sit Spot
Science Project
Watching Birds at a Sit Spot
Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.
1st grade
Science
Science Project
Erosion Experiment
Erosion Experiment
Science Project
Erosion Experiment
Do you think you can blow down a sand castle with a mighty wind? Find out which material stands up best to erosion in this erosion experiment.
2nd grade
Science
Science Project
Mouth Bacteria?
Mouth Bacteria?
Science Project
Mouth Bacteria?
Would it hurt to skip brushing your teeth just this once? Let's find out by seeing which foods produce the most mouth bacteria.
4th grade
Science
Science Project
Shadow Science: What Makes Shade Shift?
Shadow Science: What Makes Shade Shift?
Science Project
Shadow Science: What Makes Shade Shift?
What makes your shadow dance around all day? Let's play detective and find out why that sneaky shadow never stays in one place for long.
1st grade
Science
Science Project
Earthworms and Light: Do Worms Prefer Darkness?
Earthworms and Light: Do Worms Prefer Darkness?
Science Project
Earthworms and Light: Do Worms Prefer Darkness?
Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.
2nd grade
Science
Science Project
Color Changing Milk Experiment
Color Changing Milk Experiment
Science Project
Color Changing Milk Experiment
Milk is made of water and fat; but how can you separate the two? Find out in this color changing milk experiment.
2nd grade
Science
Science Project
Egg Parachute
Egg Parachute
Science Project
Egg Parachute
Your mission, if you choose to accept it, is to construct a parachute that will deliver an egg safely to the ground. Good luck!
Science
Science Project
Water Salinity
Water Salinity
Science Project
Water Salinity
Will increasing the amount of salt in water effect how slow or fast the water freezes?
3rd grade
Science
Science Project
Ice Melting
Ice Melting
Science Project
Ice Melting
Will the shape of an ice cube impact how fast the ice melts?
5th grade
Science
Science Project
Pepper and Soap Experiment
Pepper and Soap Experiment
Science Project
Pepper and Soap Experiment
Use pepper and soap to discover some fun facts about the properties of water.
2nd grade
Science
Science Project
Shape Words
Shape Words
Science Project
Shape Words
Is it a square or a circle? See if you can trick your friends with this zany science project!
2nd grade
Social studies
Science Project
Human Lie Detector
Science Project
Human Lie Detector
Do human lie detectors exist? Charge up your powers of observation to see if you can tell a lie from the truth.
Social studies
Science Project
Which Gum has the Longest Lasting Flavor?
Science Project
Which Gum has the Longest Lasting Flavor?
Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!
3rd grade
Science
Science Project
Eraser Test
Science Project
Eraser Test
Get down to the rubber with this science project that tests the effectiveness of different types of erasers.
2nd grade
Science
Science Project
Favorite Colors
Favorite Colors
Science Project
Favorite Colors
Step into the fantastic world of colors with a project that explores what shade you -- and your friends -- like best.
2nd grade
Social studies
Science Project
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

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.