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Elementary School Science Fair Project Ideas

Great selection of elementary school science fair project ideas. These science fair projects can help you find elementary school level ideas for your science fair.

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Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.
Why Doesn't the Ocean Freeze?
Second Grade
Chemistry
This science fair project idea demonstrates sonar mapping of the ocean floor.
Understanding Sonar Mapping of the Ocean Floor
Elementary School
Easy
Science fair project which simulates the global conveyor belts on a small scale, and observes the effects of wind, density and temperature on water movement.
Ocean Currents
Fifth Grade
Sixth Grade
Creating an earth model is a fun, hands-on way to learn all about our planet. In this project, you'll build a model of the world, complete with all seven continents and four major oceans.
Create Your Own Earth Model
Third Grade
Earth & Space Science
In this investigation, an oil spill is simulated in a jar to observe the damage that oil spills have on the ocean and ocean life.
Don't Cry Over Spilled Oil
Elementary School
First Grade
Science fair project that examines how tsunamis travel by simulating a tsunami moving around an island. You will generate a pretend tsunami in a swimming pool.
Travelling Tsunamis
Fifth Grade
Sixth Grade
Check out this fun science project to explore if sodium polyacrylate can be a possible alternative to the use of chemical dispersant in oil spill cleanups.
Which Oil is Easier to Cleanup with Diaper Powder?
Elementary School
Fourth Grade
In this free science fair project idea, we model the movement of worms and fish by analyzing their swim bladder and peristalsis movement methods.
Creative Movements: What Causes the Wavelike Movement in an Earthworm’s Body?
Elementary School
Zoology
In this free science fair project idea, we learn about how the blowholes of whales work.
Super Spout: What Is In a Whale’s Spout?
Elementary School
Zoology
In this free science fair project idea, salt crystals dissolve in water, and then crystallize into epsom salt crystals.
Spindles: How Can You Observe the Natural Shape of Epsom Salt Crystals?
Elementary School
Easy
In this science fair project, students will create a model of a shoreline, observe erosion and examine how jetties prevent erosion.
Exploring Erosion, Sediments and Jetties
Fourth Grade
Earth & Space Science
This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.
Homemade Lava Lamp
Elementary School
Fourth Grade
This science fair project idea uses the process of chemical weathering to change a mineral.
Chemical Weathering
Elementary School
Easy
This science fair project idea produces consumable fresh water from salt water through desalination.
Desalination
Elementary School
Easy
In this free science fair project idea, we learn about how scientists use indicators to predict the earth's climate and geology many years ago.
Indicators: How do Scientists Gather Clues to Climates of the Past?
Elementary School
Easy

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