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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 kids experimental design and how to test if subjects can really sense if they are being watched.
Fourth Grade
Psychology and Sociology
This project examines whether people's taste perception is influenced by what they see.
Fourth Grade
Psychology and Sociology
This project explores whether people's choice of a 'random' number is not as random as it seems.
Fourth Grade
Psychology and Sociology
Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.
Fourth Grade
Psychology and Sociology
This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.
Fourth Grade
Psychology and Sociology
How well can people recall what they have observed. Test your knowledge in this fun experiment.
Fourth Grade
Psychology and Sociology
This project examines the common belief that with increasing age, people are less willing to adopt new technology.
Fourth Grade
Psychology and Sociology
Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.
Fourth Grade
Psychology and Sociology
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 idea examines whether boys and girls differ in reflexes.
Fourth Grade
Psychology and Sociology
Free science fair project idea that examines the differences between cats and dogs. Analyze objective qualities rather than subjective ones.
Fourth Grade
Psychology and Sociology
This science project encourages students to investigate the Mozart Effect, the idea that classical music promotes learning.
Fourth Grade
Psychology and Sociology

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