Education.com
Try
Brainzy
Try
Plus

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.

Sort by:
Showing 16 to 30 of 151
In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.
Fourth Grade
Chemistry
Discover how and which salt melts ice the quickest.
Fourth Grade
Chemistry
This science fair project idea  develops an understanding through experimentation of which shapes are the most structurally strong.
Fourth Grade
Physics
Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.
Fourth Grade
Aerodynamics
This science fair project idea explores the different parts of the human ear and  models how the human ear reacts to sound waves.
Fourth Grade
Physical Science
Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.
Fourth Grade
Physical Science
Create a DIY Electromagnet! Using a 9v battery to create an electrical field around a nail, students explore electromagnetism in this cool science project idea.
Fourth Grade
Physics
This science fair project idea  researches the different layers of the atmosphere and creates a visual representation of the atmospheric layers.
Fourth Grade
Physical Science
This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.
Fourth Grade
Chemistry
This science fair idea project identifies the active ingredients in soap and experiments with the properties of soap.
Fourth Grade
Chemistry
This science fair project creates a visual model of whatâs happening to  sound waves as a car approaches and then leaves.
Fourth Grade
Physics
What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!
Fourth Grade
Chemistry

Share these projects with friends

clear all

Filter by

Subject
Recommended Learning Products
Trust Education.com to find smart things kids love
Unlimited Workbooks and Worksheets
90% of Students Understand Concepts Better Since Using PLUS
Make Math Practice Fun and Engaging
Interactive Math Lessons for Elementary School Students
A Fun and Easy Way to Learn Programming
Proven approach quickly guides kids to success