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Science Fair Project Ideas

Find the earth & space science and psychology and sociology 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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The objective of this science fair project is to set up a compost bin to convert food scraps and organic waste.
Composting Food Scraps
Ecology
Elementary 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
Earth & Space Science
Weather and Climate
In this science fair project, students create their own miniature salt flats at home.
Create Your Own Miniature Salt Flats!
Geology
Fourth Grade
This science fair project idea explores how water and ice can change the form of rocks.
How Water Beats Rock
Geology
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
Earth & Space Science
Geology
The purpose of this science fair project is to explore if the angle of the sun striking the solar cell affects how much electricity the cell releases.
Does the Sun's Angle Affect the Output of a Solar Cell?
Ecology
Middle School
In this experiment, the weight of aluminum cans will be compared.
Illuminating Aluminum
Ecology
Elementary School
In this experiment, students will create their own version of coquina, a sedimentary rock thatâs formed by seashells and sand, cemented by seawater minerals.
Pasta Coquina: Make Your Own Sedimentary Rock
Earth & Space Science
Geology
The goal of this science fair project is to test the effectiveness of various search engines.
Effectivess of Various Search Engines
Psychology and Sociology
Elementary School
This project tests the feasibility of earthworms as a means of recycling kitchen waste into fertile garden soil.
Can Earthworms be Used to Recycle Kitchen Wastes into Fertile Garden Soil?
Ecology
Fourth Grade
This science fair project idea discovers the average time it takes for a person to remember something completely.
How Long Does It Take To Remember Something?
Psychology and Sociology
Middle School
This project uses science and art to help students learn and teach others about Earth's endangered and extinct species.
Where Did All the Wild Things Go?
Ecology
Fifth Grade
Science fair project that examines the different types of precipitation, evaluates the density of snow and calculates the ratio of snow-to-liquid.
Snow to Liquid Ratio
Weather and Climate
Second Grade
This science fair project idea researches the definition of ‘biodegradable’ and explores this in a real-life setting.
How Long Will Your Trash Bag Live?
Ecology
Elementary School
This project investigates whether chewing gum can help a majority of people with focus and concentration.
Does Chewing Gum Help You Concentrate?
Psychology and Sociology
High School

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