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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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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
This science fair project idea uses the process of chemical weathering to change a mineral.
Chemical Weathering
Elementary School
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
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 cool elementary school science fair project idea make a model to learn what happens to the Earth's surface when ice moves over land.
How Does Glacier Movement Affect Earth?
Elementary School
Medium
The purpose of this science fair project is to investigate why honey crystallizes and what may make honey crystallize faster.
Why Does Honey Crystallize?
First Grade
Second Grade
This science fair project idea determines how much sugar is in each type of drink.
Which has the most sugar: Fruit Juice, Fresh Squeezed Fruit Juice, Organic Fruit Juice, or Soda?
Elementary School
Middle School
This science fair project idea studies how time perception changes with age.
How Does time Perception Change As You Get Older?
Elementary School
Middle School
In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.
Popcorn Pumice: Exploring Different Rock Densities
Third Grade
Fourth Grade
This science fair project idea explores whether a sundial is as accurate as an atomic clock when telling time.
How Accurate is Using a Sundial Compared to an Atomic Clock?
Elementary School
Fifth Grade
What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.
What Causes Dilated Pupils?
Third Grade
Anatomy
This science fair project examines how seeds hitchhike on animals and clothing.
How Do Seeds Hitchhike?
Elementary School
Second Grade
This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.
Arch Magic: The Unbreakable Egg
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
Looking for a fun project on energy? Check out this fun elementary school science fair project idea that demonstrates chemical energy in a bottle.
Chemical Energy in a Bottle
Elementary School
Medium

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