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Middle School Science Fair Project Ideas

Looking for science fair project ideas that will make your kid a star at his upcoming science fair? Education.com's editorial staff has curated a rich collection of cool Earth and space science fair projects written by our team of talented professional scientists, science teachers, and educational consultants. Our Earth science projects and Earth science experiments give inquisitive kids the opportunity to identify unknown minerals and discover why certain volcanic rocks can float. Our space science projects give students the chance to do everything from building a model rocket to determining the elliptical path of a planet's orbit using applied math.

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Science fair project that guides you through how to test the humidity in the environment using a homemade psychrometer.
Weather and Climate
Sixth Grade
Become familiar with ratios and learn how to measure the diameter of the Sun and the Moon in this fun science fair project idea.
Middle School
Astronomy
Science fair project that examines how winter storms form and the relationship between temperature, moisture and snow.
Weather and Climate
Third Grade
Save money by making compost! Use this science fair project idea to determine which composting methods best encourage decomposition of organic matter.
Ecology
Sixth Grade
Science fair project that measures the relative times it takes a plastic bag and a biodegradable plastic bag to decompose.
Earth & Space Science
Sixth Grade
Science fair project that determines which types of clouds are best at blocking harmful UV radiation.
Earth & Space Science
Sixth Grade
In this science fair project, students use hot and cold water to simulate what happens when a warm front meets a cold one.
Middle School
Earth & Space Science
Science fair project that examines the physical characteristics of soil in order to learn about soil permeability and other environmental properties.
Earth & Space Science
Fifth Grade
Science fair project that helps you create your own compost pile in order to test the efficiency of different methods of composting.
Ecology
Environmental Issues
Science fair project that compares the freezing temperature of salt water and freshwater in order to learn about supercooling and condensation nuclei.
Earth & Space Science
Fifth Grade
Science fair project that examines how temperature affects density and how density in turn affects the behavior of helium gas.
Weather and Climate
Fifth Grade
Oil spill cleanup! The objective of this science fair project is to determine whether oil spill absorbents work better in warmer temperatures.
Ecology
Environmental Issues
Does putting soapy water on plants help or hinder plant growth? Kids learn about greywater and how it affects plant growth in this cool science fair project.
Environmental Issues
Sixth Grade
Science fair project that examines albedo, and how this information is applied in the design of cars, sportswear, and other items. Which colors reflect light?
Weather and Climate
Third Grade
This science fair project idea observes products available in the school cafeteria and waste produced by these products.
Middle School
Ecology

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