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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 project examines the impact of low water on a radish seedling root system. How is growth affected?
Effect of Low Water on a Seedling Root System
Elementary School
Fourth Grade
Will increasing the amount of salt in water effect how slow or fast the water freezes?
Water Salinity
Third Grade
Chemistry
This science fair project idea teaches kids the different functions of a leaf.
What Do Leaves Do?
Elementary School
Botany
Take a dive into the candy jar with this yummy science experiment.
Candy pH
Fourth Grade
Chemistry
Learn how to be a bird scientist in this simple project of watching feathered friends in their habitat.
Look and Listen! Watching Birds at a Sit Spot
First Grade
Zoology
Cleaning can be a chore, but not with this sudsy experiment!
Homemade Cleaners: Getting Squeaky Clean
Third Grade
Chemistry
This project is a vivid, concrete introduction to the basic but important idea that plants need sunlight and water to grow.
Plants Need Sunlight and Water
Elementary School
Kindergarten
Science fair project that examines what causes thunder and why a thunderclap sounds so loud. How is lightening related to the creation of sound waves?
A Thunderous Sound
Second Grade
Third Grade
The purpose of this science fair project is to determine whether a thin wire or a thick wire more effectively energizes a light bulb connected to a battery.
Does Electricity Move Better through Thick Wires or Thin Ones?
Elementary School
Fifth Grade
Test your friends to find out if you can replicate the placebo effect's incredible results.
The Placebo Effect
Second Grade
Anatomy
Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.
Mental Mix Up: Experimenting with Your Ability to Focus
Third Grade
Fourth Grade
Learn the basic structure of a DNA strand, which is the double helix, how genes form together, and the resemblance DNA has to a twisted ladder. Create a model.
How to Build a DNA Model
Fifth Grade
Middle School
This fun and easy middle school science fair project idea explores the topic of pollution and demonstrates if polluted soil affect the growth of green plants.
Do Plants Experience Pollution? Will Plants Grow More or Less or be Unaffected when Grown in Polluted Soil?
Elementary School
Easy
Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.
Latent Fingerprints
First Grade
Second Grade
This science fair project idea explores whether boiling and freezing water will have an effect on how much it weighs.
Does Liquid Weigh More after Freezing and Boiling?
Elementary School
Fifth Grade

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