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Fourth Grade Science Fair Project Ideas

Great selection of fourth grade science fair project ideas. These science fair projects can help you find fourth grade level ideas for your science fair.

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Compare animal and plant fats and observe, and record, and draw conclusions about their similarities and differences.
Plant and Animal Fat Facts
Fourth Grade
Elementary School
This science fair project idea examines liquids of different densities.
Layered Liquids (A Study in Density)
Fourth Grade
Elementary School
The objective of this science fair project is to examine the basic principles of air pressure using simple materials like a balloon, straw and string.
Principles of Air Pressure
Fourth Grade
Elementary School
This science fair project idea determines what household items are good conductors of electricity.
Conductor or Insulator?
Fourth Grade
Third Grade
This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.
The Mozart Effect
Fourth Grade
Elementary School
The objective of this science fair project is to analyze the effects of salinity and temperature on water.
How Does Salinity and Temperature Affect the Density of Water?
Fourth Grade
Elementary School
The project determines which laundry detergent is best for cleaning clothes.
Shout It Out!
Fourth Grade
Elementary School
The purpose of this science fair project is to determine whether a mordant causes natural dye be brighter or longer lasting.
Does a Mordant Make a Natural Dye Brighter or Longer Lasting?
Fourth Grade
Elementary School
This science fair project compares the 3-dimensional Holographic Effect capabilities of high definition glasses to that of the standard Red/Blue color lenses.
Comparing the Holographic Effect Capabilities of HD Gasses to Red/Blue Lens 3D Glasses
Fourth Grade
Elementary School
Fruits, molasses, sugar, honey, corn syrup, or jelly? The goal of this science fair project is to explore which foods yeast cells eat.
What Do Yeast Eat...and How Can You Tell?
Fourth Grade
Elementary School
The purpose of this science fair project is to determine whether garlic prevents microbial growth.
Does Garlic Prevent Microbial Growth?
Fourth Grade
Elementary School
In this project, the fingerprints of family members are compared to determine if people from the same family have similar fingerprints.
Fingerprint Findings
Fourth Grade
Elementary School
Tree rings can tell the age of the tree but also information about the world. This science experiment uses tree stumps to discover new facts.
Stumped?
Fourth Grade
Elementary School
The project is to investigate yeast fermentation and its results on hand of latex balloons.
On The Rise
Fourth Grade
Elementary School
What keeps a an item cooler, polymer crystals or ice? Test your knowledge!
Polymer Crystals vs. Ice
Fourth Grade
Elementary School

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