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Earth and Space Science Fair Projects

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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How Fast Does a Seismic Wave Travel?

Check out this fun science fair project idea to learn about seismic waves and how fast they travel during an earthquake.

Measuring Sugar in Fruit Using a Refractometer

Check out this cool science fair idea on why hard fruits become soft and learn how to compare the sugar content between ripe and unripe fruits.

Ping Pong Ball Anemometer

Learn how to make a ping pong ball anemometerâa device used to measure wind speedâin this free science fair project idea.

Rate of Diffusion

Kids learn about Brownian motion, diffusion, and how temperature is a key factor affecting the rate of diffusion in this cool science project.

The Preferred Food Of Detritivores: A Composting Project

This science fair project idea quantifies the effect of specific food sources on red worm (Eisenia foetida) livelihood.

Falling Objects Revisited

This science fair project idea discovers whether there are some objects that do not fall at a constant rate.

Where Did All the Wild Things Go?

This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.

Craters! Can We Simulate How Craters Are Formed and Predict Their Size and Shape?

The purpose of this science fair project is to investigate whether we can simulate how craters are formed and predict their size and shape.

Free science fair project idea that examines air pollution in local environments. Particles are trapped by petroleum jelly on microscope slides.

This science project has students collect wood samples and invent new uses for different types of wood based on its properties.

Plants and Soil Acidity

This science fair project determines whether the types of plants growing in a Pacific Northwest rain forest environment are influenced by the soil acidity.

Most Popular Soda

The goal of this science fair project is to discover the science behind carbonated soft drinks and apply this knowledge to create a new one.

How to Test the Efficiency of a Photovoltaic Cell?

Get a cool science project idea on a photovoltaic cell and explore the various factors that affect the energy output of the photovoltaic cell.

The Photosynthesis Process and the Importance of Leaves

The objective of this science fair project is to study the photosynthesis process and demonstrate the important role that leaves play in the process.

This science fair project idea determines whether plants grow better in soil or in fish ponds.

Building a Simulated Volcano

The objective of this science project was to build a model of a volcano and observe reaction between different substances, including baking soda and vinegar.

What Is Persistence of Vision?

What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.

Virtual Fitness

The objective of this science fair project is to assess the benefits of the game system for improving player performance following use.

Wind Turbine Design

Science fair project that determines whether windmills can be designed so that birds will not feed on them. Will they discriminate between different patterns?

Science fair project that determines whether algae can be made to grow by feeding it supplementary carbon dioxide.

The Mohs Test: How to Compare the Hardness of Minerals

This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.

3D Experiment: Red/Blue Glasses vs. HD Glasses

In this fun science fair project, draw a 3D picture and compare the holographic effects of red and blue 3D glasses and HD glasses!

Which Side of the Brain Draws the Best?

The objective of this science fair project is to determine whether drawing with the right side or the left side of your brain will produce a better picture.

Testing the Ozone

Compare the amount of ozone in various locations with this science fair project that will have your kid create her own ozone strips!

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