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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.

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This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.
Fourth Grade
Health and Medicine
Are crickets affected by temperature? Test your knowledge! This project examines whether temperature has any effect on the chirping of crickets.
Fourth Grade
Psychology and Sociology
This science fair project uses paper chromatography to  investigate whether black, brown, orange, and purple are pure colors or mixtures of other colors.
Fourth Grade
Forensic Science
Could there be toxic chemicals lurking in the cupboards and closets of your home?
Fourth Grade
Health and Medicine
This project determines what category of person is most likely to be ticklish.
Fourth Grade
Behavioral/Health Science
Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.
Fourth Grade
Forensic Science
This science experiment examines the role of fat in food, especially in making bread rise and whipping cream.
Fourth Grade
Health and Medicine
Get this cool science fair idea to explore how arctic tundra animals change their behavior and adapt to survive in long, cold winters.
Fourth Grade
Health and Medicine
With this science fair idea, little scientists will gain valuable insights into the physics behind throwing a baseball.
Fourth Grade
Sports
Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.
Fourth Grade
Food

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