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Science Fair Project Ideas

Find the engineering and weather and climate science fair project ideas you're looking for. Many different science fair projects are available for you to browse through and get ideas for your own science fair project.

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What is an anemometer? It's a device use to measure wind speed. Learn how to make an anemometer in this free science fair project.
Building an Anemometer
Weather and Climate
Middle School
In this science fair project, students will construct their own hovercraft.
DIY Hovercraft
Engineering
Fourth Grade
In this science fair project, students use hot and cold water to simulate what happens when a warm front meets a cold one.
When Air Masses Collide
Weather and Climate
Middle School
Kids will make a beautiful rainbow in a jar and learn what enables different types of liquids to remain distinct in separate layers.
Rainbow in a Jar
Weather and Climate
Second Grade
This science fair project demonstrates the magic of arches by challenging students to stack telephone books on top of eggs without breaking them.
Arch Magic: The Unbreakable Egg
Engineering
Elementary School
In this free science fair project idea, we learn about how the Greek mathematician Eratosthenes determined the size and shape of the earth with geometry.
Ancient Techniques of Determining Earth's Size and Shape
Engineering
Middle School
In this science fair experiment, students learn about the scientific principles behind Doppler ultrasound.
Measuring Heart Rate with Doppler Ultrasound
Engineering
Middle School
What is a great way to improve a building's ability to stay strong under stress? This project explores the process of bracing a building with parallelograms to improve sturdiness.
How to Retrofit a Building
Engineering
Middle School
What is Coriolis force? Do this free science fair project and explore the physics of the Coriolis effect. A great science project for middle school students.
The Coriolis Effect
Weather and Climate
Middle School
What is a hygrometer? It's a device that measure humidity. Learn how to make a hygrometer in this free science fair project idea. Great project for kids.
Making a Hygrometer
Weather and Climate
Middle School
In this free science fair project idea, we wind a rubber band in a machine, and watch it transform potential energy into kinetic energy.
Spool-Racer: How Can a Rubber Band Transform (Change From one Form to Another) Energy?
Engineering
Elementary School
How do clouds form? Can clouds be made manually? In this free science fair project, you can make clouds using simple materials.
Making Clouds
Weather and Climate
Middle School
This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.
Bridge Project
Engineering
Elementary School
This science fair project idea determines if a robot equipped with sound/touch sensor circuitry displays sequential or random movement.
Robot Movement
Engineering
Middle School
In this free science fair project idea, we make a compound microscope by putting together two magnifying lens.
Doubles: How do Objects Look Through a Compound Microscope?
Engineering
Elementary School

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