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Fifth Grade Science Fair Project Ideas

Education.com's 5th grade science projects enable kids to apply everything they've learned over the course of their elementary school careers in order to discover some pretty cool and new things about the world around them. In addition to setting up more sophisticated experimental procedures, 5th graders can analyze their results using more sophisticated math, and may begin to acquire an appreciation for large sample sizes and their ability to produce more reliable averages. Browse our rich collection of 5th grade science fair projects by clicking the boxes to the left to filter your results by scientific subtopic to find fantastic 5th grade science fair projects or enlightening 5th grade science experiments for your young scientist.

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Science fair project that determines whether lettuce that is harvested gradually yields more produce than lettuce that is harvested all at once.
Fifth Grade
Life Science
Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.
Fifth Grade
Life Science
The objective of this science fair project is to test how effective waterless hand sanitizers and generic ethanol kill bacteria.
Fifth Grade
Microbiology
This project determines the age of a tree using a growth factor chart instead of cutting the tree down to count the rings in its base.
Fifth Grade
Life Science
Protozoa and ciliate and amoeba, oh my! The objective of this science fair project is for students to use a microscope and identify microscopic life.
Fifth Grade
Microbiology
This science research project challenges students to think of more effective lobster farming methods.
Fifth Grade
Zoology
This science fair project teaches you about what makes persimmons so tart and how astringency can be removed by studying the effect of tannins on fruit.
Fifth Grade
Botany
Purpose of science fair project: does pre-washing lettuce with a vinegar and water solution remove more bacteria than washing with only water?
Fifth Grade
Microbiology
The project investigates the affect music has on plant growth while experimenting with rock, classical and no music.
Fifth Grade
Botany

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