Earth and Space Science Fair Projects

Looking for science fair project ideas that will make your kid a star at his upcoming science fair?'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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Check out this free high school science fair project to explore the physics of the Coriolis effect with a homemade Foucault Pendulum.
Weather and Climate
Ninth Grade
Students explore hot desert plant adaptations in this cool science fair project by observing how these organisms prevent excessive transpiration.
Fifth Grade
Science fair project which compares the rate of temperature change and the maximum temperature as a result of the angle of light radiation.
Earth & Space Science
Fourth Grade
Science fair project that examines condensation and the conditions needed in order for dew to form.
Weather and Climate
Second Grade
In this free science fair project, learn how oxygen changes rock into an orange or reddish brown colors.  Use for science fair project ideas!
Elementary School
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, you'll make a 'ghost' appear in a test tube, and learn about what happens when hot water and cold water interact.
Weather and Climate
Elementary School
This science project challenges students to take learned information about weather and  climate control and apply it to larger issues like global warming.
Weather and Climate
High School
In this free science fair project idea, we learn about star 'movement' and how we can calculate the distance of stars from the earth using a parallax.
Earth & Space Science
This science fair project idea researches the effects of acid rain on plant growth.
Elementary School

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