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3rd Grade Science Fair Projects

For their 3rd grade science projects, kids begin investigating the answers to their questions much like actual scientists would. Instead of simply collecting qualitative data (describing what they observe), 3rd graders graduate to collecting and presenting quantitative data by measuring their results with increased accuracy, communicating their findings in simple charts and graphs, and describing their observations in written prose. Education.com's collection of 3rd grade science fair projects give kids the opportunity to apply their newly acquired skills to thinking critically about the world around them while having serious fun in the process. Browse our collection of third grade science projects and experiments by using the boxes to the left to filter by topic and find an exciting science project your child will be sure to love.

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Science fair project which determines whether the size or the thickness of a piece of paper has an effect on how many times it can be folded in half.
Third Grade
Second Grade
Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.
Third Grade
Fourth Grade
Science fair project in which you make cheese in your own kitchen using milk, lemon juice and cheese cloth.
Third Grade
Fourth Grade
What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.
Third Grade
Easy
In this science project, the center of gravity is explored.
Third Grade
Elementary School
Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.
Third Grade
Elementary School
The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.
Third Grade
First Grade
In this science fair project you will make a model of a cell membrane using very simple material.
Third Grade
Fourth Grade
What is a compound microscope? Kids find out by making one of their own in this cool science fair project.
Third Grade
Engineering
The purpose of this science fair project is to investigate the reliability of eye witness reports.
Third Grade
Elementary School
These science fair experiments demonstrate the chemistry of rust and the oxidation process.
Third Grade
Elementary School
The project investigates how water and movement affects erosion.
Third Grade
Elementary School
Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.
Third Grade
Second Grade
The purpose of this science fair project is to investigate how various odors affect cricket behavior.
Third Grade
Kindergarten

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