Fourth Grade Science Fair Project Ideas

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281 filtered results
4th grade
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Mineral Streak
Mineral Streak
Science Project
Mineral Streak
In this science fair project, learn how a mineral streak is made and how it can help identify an unknown mineral.
4th grade
Science
Science Project
Can Hydrogel Crystals be Used as a Sensitive Humidity Indicator?
Can Hydrogel Crystals be Used as a Sensitive Humidity Indicator?
Science Project
Can Hydrogel Crystals be Used as a Sensitive Humidity Indicator?
This science fair project focuses on a polymer called hydrogel super absorbent crystal which absorbs water, swelling to many times its original size.
4th grade
Science
Science Project
Can Crystals Show Color Mixing?
Can Crystals Show Color Mixing?
Science Project
Can Crystals Show Color Mixing?
This science fair project idea determines if crystals will absorb food dye and if colors will mix by the process of diffusion.
4th grade
Science
Science Project
Conductor or Insulator?
Conductor or Insulator?
Science Project
Conductor or Insulator?
This science fair project idea determines what household items are good conductors of electricity.
4th grade
Science
Science Project
Tropical Rainforest Trees: Buttress Roots
Tropical Rainforest Trees: Buttress Roots
Science Project
Tropical Rainforest Trees: Buttress Roots
What are buttress roots? In this fun science project, make a model of a rainforest tree and learn how they help trees survive in the tropical rainforest!
4th grade
Science
Science Project
My Black Shirt Is A Heater!
My Black Shirt Is A Heater!
Science Project
My Black Shirt Is A Heater!
This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.
4th grade
Science
Science Project
Color and Heat Absorption
Color and Heat Absorption
Science Project
Color and Heat Absorption
The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.
4th grade
Science
Science Project
How to Inflate a Balloon Using Baking Soda and Vinegar
How to Inflate a Balloon Using Baking Soda and Vinegar
Science Project
How to Inflate a Balloon Using Baking Soda and Vinegar
Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.
4th grade
Science
Science Project
Principles of Air Pressure
Principles of Air Pressure
Science Project
Principles of Air Pressure
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.
4th grade
Science
Science Project
Layered Liquids (A Study in Density)
Layered Liquids (A Study in Density)
Science Project
Layered Liquids (A Study in Density)
This science fair project idea examines liquids of different densities.
4th grade
Science
Science Project
Microwave Madness
Microwave Madness
Science Project
Microwave Madness
This science project idea examines the effect of microwaving on various objects.
4th grade
Science
Science Project
Soap Science
Soap Science
Science Project
Soap Science
This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.
4th grade
Science
Science Project
E-Z Dye Fabrics
E-Z Dye Fabrics
Science Project
E-Z Dye Fabrics
This science fair project idea creates cool new colorful fabric pattern designs and experiments with the mixing of colors.
4th grade
Science
Science Project
Magnets and Temperature: Does the Temperature of a Magnet Affect its Strength?
Magnets and Temperature: Does the Temperature of a Magnet Affect its Strength?
Science Project
Magnets and Temperature: Does the Temperature of a Magnet Affect its Strength?
Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.
4th grade
Science
Science Project
Dog Diets: Will a Dog Prefer Homemade Dog Food?
Dog Diets: Will a Dog Prefer Homemade Dog Food?
Science Project
Dog Diets: Will a Dog Prefer Homemade Dog Food?
Would your dog prefer homemade or store-bought food? Raw or cooked? Test your dog's preferred diet in this fun experiment.
4th grade
Science
Science Project
Bust That Rust!
Bust That Rust!
Science Project
Bust That Rust!
These science fair experiments demonstrate the chemistry of rust and the oxidation process.
4th grade
Science
Science Project
How Does Salinity and Temperature Affect the Density of Water?
How Does Salinity and Temperature Affect the Density of Water?
Science Project
How Does Salinity and Temperature Affect the Density of Water?
The objective of this science fair project is to analyze the effects of salinity and temperature on water.
4th grade
Science
Science Project
Mapping the Energy Use of My Classroom
Mapping the Energy Use of My Classroom
Science Project
Mapping the Energy Use of My Classroom
This science fair project enhances the understanding and awareness of energy use and explores the concept of energy efficient.
4th grade
Science
Science Project
How Long Will Your Trash Bag Live?
How Long Will Your Trash Bag Live?
Science Project
How Long Will Your Trash Bag Live?
This science fair project idea researches the definition of ‘biodegradable’ and explores this in a real-life setting.
4th grade
Science
Science Project
Effects of Acid Rain on Plant Growth
Effects of Acid Rain on Plant Growth
Science Project
Effects of Acid Rain on Plant Growth
This science fair project idea researches the effects of acid rain on plant growth.
4th grade
Science
Science Project
Paper Making: The Next Level
Paper Making: The Next Level
Science Project
Paper Making: The Next Level
This science fair project idea is develops new or improved paper making techniques and encourages recycling.
4th grade
Science
Science Project
All About Air Pressure
All About Air Pressure
Science Project
All About Air Pressure
The goal of this science fair experiment is to demonstrate the effects of air pressure on objects and analyze applications of air pressure principles.
4th grade
Science
Science Project
Fresh Food vs. Frozen Food
Science Project
Fresh Food vs. Frozen Food
The goal of this science fair project is to analyze differences between the taste and texture of frozen and fresh food.
4th grade
Science
Science Project
Simple Machines
Simple Machines
Science Project
Simple Machines
In this science fair project, apply the principles of leverage and force by building six simple machines designed to set weights in motion.
4th grade
Science
Science Project
Shapes of Leaves
Shapes of Leaves
Science Project
Shapes of Leaves
This science project teaches students to classify different shapes of leaves.
4th grade
Science
Science Project

Fourth Grade Science Fair Project Ideas

Building off of what they learned in 3rd grade, 4th graders add a new level of sophistication to their 4th grade science projects. In addition to describing data quantitatively, kids begin to use their observations to formulate scientific arguments and engage in scientific debate. 4th grade science fair projects may involve kids going beyond testing a hypothesis—young scientists can be encouraged to use their results to make predictions about what might happen when the experiment is expanded to test new variables. Education.com's selection of fourth grade science fair project ideas are carefully written with 4th graders in mind, giving them the tools they need to effectively learn about the world around them by pursuing the answers to their questions in a methodical way.