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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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Attraction? Detraction? The goal of this science fair project is to explore how magnetic fields differ.
How Do Magnetic Fields Differ?
Fourth Grade
Elementary School
Using a nine-volt battery to create an electrical field around a nail, students make their own electromagnet.
DIY Electromagnet
Fourth Grade
Fifth Grade
The purpose of this science fair project is to investigate why honey crystallizes and what may make honey crystallize faster.
Why Does Honey Crystallize?
Fourth Grade
First Grade
How do Plants Absorb Water?
Fourth Grade
Elementary School
This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.
The Role of Fat in Food
Fourth Grade
Elementary School
The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.
How Does Sound Travel?
Fourth Grade
Elementary School
This project explores whether people's choice of a 'random' number is not as random as it seems.
17: The Most Popular Random Number
Fourth Grade
Elementary School
In this science fair project, you'll make a 'ghost' appear in a test tube, and learn about what happens when hot water and cold water interact.
The Ghost in the Tube
Fourth Grade
Elementary School
This project examines the common belief that with increasing age, people are less willing to adopt new technology.
Age and the Willingness to Adopt Technology
Fourth Grade
Fifth Grade
In this science fair project, students make their own rain gauge to measure rainfall.
DIY Rain Gauge
Fourth Grade
Fifth Grade
The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.
Color and Heat Absorption
Fourth Grade
Elementary School
This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.
Greenhouse Project
Fourth Grade
Third Grade
Demonstrate how you can make your own compass using a magnetized needle. It also allows you to compare magnetic north and geographic north.
Make a Magnetized Compass!
Fourth Grade
Elementary School
The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.
Composting Food Scraps
Fourth Grade
Elementary School
This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.
Can New Plants Be Made Without Seeds?
Fourth Grade
Elementary School

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