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Science Fair Project Ideas

Find the science fair project ideas you're looking for. Many different science fair projects are available for you to browse through and get ideas for your own science fair project.

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In this free science fair project, learn how to grow algae and explore the behavior of algae. A great science project for middle school students.
Growing Algae
Middle School
Easy
Why do irons rust? Can rusting be prevented in iron? Do this free science fair project and explore the different ways of preventing corrosion.
Keep Iron from Rusting
Middle School
Easy
Determine how salinity affects the circulation of warm and cold water. Note whether the warm water mixes or forms a layer with cold water.
Salinity & Water Density
Middle School
Hard
Get free science fair project ideas for middle school and high school students that cover topics from astronomy to physics.
Squirter: How Does Depth Affect the Pressure of Water?
Elementary School
Easy
Examine the influence of the phase of the moon on moisture capillarity in garden soil. Measure and record the depth at which water is first detected.
Planting By the Moon
Middle School
Hard
In this free science fair project, explore the method of separating salt and water in seawater using heat. A great science project for elementary school kids.
Sun Dried: How Can the Sun be Used to Separate Salt from Salt Water?
Elementary School
Easy
This science fair project idea models industrial oil spills and determines if they have an impact on wildlife living beneath the surface of the water.
Oil Spills and Wildlife: The Effect of a Surface Lipid Layer on Organism Survival Rates
Middle School
High School
Study the effects of wind and temperature on evaporation. Place wet sponges in different environments, check at regular intervals, track time required to dry.
Evaporate
Middle School
Medium
This science fair project idea investigates how a bottom keel helps keep a boat from rocking back and forth.
Don't Rock the Boat
Third Grade
Fourth Grade
Did you know that an iceberg has more ice below the water's surface than above it? In this project, learn how you can model the position of an iceberg in water.
Floaters: How Can You Model the Position of an Iceberg in Water?
Middle School
Easy
This science fair project idea compares biodiversity between drops of water.
Biodiversity in a Drop of Water
Elementary School
Third Grade
How can the strength of two magnets be compared? Find out using a compass, 2 rulers and 2 bar magnets in this fun science fair project!
Tug-Of-War: How Can The Strength of Two Magnets be Compared?
Elementary School
Middle School
Have fun with bubbles and find out why there are bubbles in your tap water in this cool science fair project idea.
What is in Tap Water?
Elementary School
Easy
A compass is a useful navigational instrument for determining direction relative to the Earth's magnetic poles. Learn how to use one in this science project!
Pointer: How Does A Compass Work?
Elementary School
Physics
This project examines the concentration of dissolved oxygen in water, with and without oil.
Let Me Breathe, Please!
Eighth Grade
Hard

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