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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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This science fair project explores how osmotic pressure forces water through the root up into the plant.
How Does Water Travel Up the Root of a Plant?
Elementary School
Third Grade
The purpose of this science fair project is to investigate how the caffeine in soda drinks impacts the human heart rate.
Caffeine and Heart Rate
Elementary School
Kindergarten
The objective of this science fair project idea is to examine light refraction as it passes through liquid crystals.
To Measure the Refraction of Light through Liquids Using Crystals
Fifth Grade
Middle School
In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.
What Lives in the Air Conditioner?
Third Grade
Fourth Grade
This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.
Does Length Have an Effect on Speed?
Elementary School
Third Grade
Check out this cool science project idea to explore the differences in feeding behaviors of birds and if other species of birds also have color preferences.
What Colors are Birds Attracted to?
Elementary School
Middle School
Here is a cool science fair project idea for elementary school students on the effects of volcanic explosion on the amount of water in rivers and streams.
Before and After: How do Streams and Rivers Behave Before and After a Volcanic Explosion?
Elementary School
Geology
Young physicists will wrestle with a discrepant eventâthe Hammer Ruler Trick. They'll make some inferences about torque, balance, and center of gravity.
Hammer Ruler Trick
Fifth Grade
Easy
The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.
The Photosynthesis Process and the Importance of Leaves
Elementary School
Fifth Grade
Check out this fun elementary science project idea about types of rocks formed after cooling down of magma or lava and intrusive and extrusive igneous rocks.
Fire Rocks: What Type of Rock is Formed When Lava Cools?
Elementary School
Geology
This science fair project idea is develops new or improved paper making techniques and encourages recycling.
Paper Making: The Next Level
Elementary School
Fourth Grade
The purpose of this science fair project is to determine the strength of a magnet based on the distance it moves a magnetic toy car.
Can a Toy Car Reveal the Strength of a Magnet?
Elementary School
Third Grade
This science fair project idea produces varying pitches of sound.
Changing the Pitch of Sound
Elementary School
Fourth Grade
Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.
Too Much Sodium?
Third Grade
Easy
This science fair project idea uses the process of chemical weathering to change a mineral.
Chemical Weathering
Elementary School
Easy

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