Science Fair Project Ideas 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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In this fun elementary school science project learn the process of communication between insects and how ants communicate with one another to find their food.
Elementary School
Study the process of osmosis and determine how placing cells into hypotonic and hypertonic solutions affects osmosis in this middle school science project.
Middle School
Life Science
This science fair project idea's objective is to understand the architecture and function of neurons and their key components.
Middle School
This science fair project idea  determines whether plants grow better in soil or in fish ponds.
Middle School
High School
This science fair project has kids conduct a blindfolded taste test to determine how smell influences our ability to taste foods.
Elementary School
Fourth Grade
This science fair project idea determines effective strategies to help students stay awake and attentive.
Middle School

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