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Science Fair Project Ideas

Education.com has assembled a vast collection of science fair project ideas written by science teachers, professional scientists, and educational consultants on popular science fair topics ranging from physics and chemistry to biology and even sociology. We offer free science fair ideas suitable for every grade level, be it preschool, kindergarten, elementary school, middle school, or high school. Check the boxes in the sidebar to filter your results, or use the search bar to find that perfect science fair project or experiment your child will be sure to love.

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Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.
Third Grade
Fourth Grade
Science fair project which determines whether plants are able to get enough nutrients from different types of garbage.
Fifth Grade
Sixth Grade
This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.
Elementary School
Third Grade
This science fair project idea explores whether talking to a plant will help it grow.
Elementary School
Third Grade
Plants need water to grow. In this project we learn how plants transport water from their roots to their leaves
Kindergarten
Elementary School
Use a dichotomous key to identify plants or animals.
Sixth Grade
Medium
Determine if certain colors of light are more effective for photosynthesis. Plant seeds in cardboard boxes with different light, record visible growth.
Middle School
Botany
Science fair project that examines how light wavelengths affect photosynthesis in the aquatic plant: Elodea.
Seventh Grade
Eighth Grade
Science fair project that compares leaf pigments of various tree species. Which tree species do you think will have the most pigments and why?
Seventh Grade
Eighth Grade
This science fair project will help students learn about non-vascular plants, such as mosses.
Second Grade
Third Grade

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