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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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Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.
Fourth Grade
Second Grade
Science fair project that determines whether tapping a pomegranate with a spoon helps it release its seeds.
Fourth Grade
Fifth Grade
This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.
Fourth Grade
Elementary School
This science fair project idea explores whether talking to a plant will help it grow.
Fourth Grade
Elementary School
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
Elementary School
This science fair project idea explores whether it is easier to balance on a narrow ledge or on a rope.
Fourth Grade
Elementary School
This science fair project idea researches the effects of acid rain on plant growth.
Fourth Grade
Elementary School
This science fair project idea examines the reason boats are shaped and engineered.
Fourth Grade
Elementary School
Discover that the absorbency of fabrics depend largely on the shape and structure of the individual fibers that make up the fabric.
Fourth Grade
Elementary School
Examine whether distilled water, spring water, or regular tap water yield faster plant growth.
Fourth Grade
Elementary School
Discover whether cold or hot water from the faucet will boil faster on the stove.
Fourth Grade
Elementary School
This science fair project idea researches how your choice of clothing affect how hot or cool you feel during the day.
Fourth Grade
Elementary School

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