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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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This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.
Greenhouse Project
Ecology
Third Grade
Check out this fun elementary science project idea about types of rocks formed after cooling down of magma or lava and intrusive and extrusive igneous rocks.
Fire Rocks: What Type of Rock is Formed When Lava Cools?
Geology
Elementary School
The objective of this experiment is to test the quality of soil surrounding a gas station to determine if gas stations have a negative effect on the surrounding landscape.
Do Gas Stations Affect the Soil Around Them?
Ecology
Middle School
Science fair project that identifies the differences between soils from different environments and attempts to figure out why those differences exist.
Exploring Soil Sandwiches
Geology
Fourth Grade
Check out this cool elementary school science fair project idea which helps students explore the reasons for the brightness of planets and the moon in the sky.
Brighter: Why are Planets and the Moon so Bright in the Sky?
Astronomy
Elementary School
The objective of this science fair project is to determine the rate at which a plastic bag, a paper bag, and newspaper biodegrade over time.
Environmental Effects of Biodegradability on Plastic Bags, Paper Bags, and Newspaper
Ecology
Middle School
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
Check out this cool science project idea to explore the differences in feeding behaviors of birds and if other species of birds also have color preferences.
What Colors are Birds Attracted to?
Ecology
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
This project examines whether people's taste perception is influenced by what they see.
Taste Perception
Psychology and Sociology
Elementary School
Let's begin digging in your backyard. This free science fair project outlines all the materials and guides you need to become an archaeologist.
Backyard Archaeology
Earth & Space Science
Middle 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
Here is a cool science fair project idea for elementary school students on the effects of volcanic explosion on the amount of water in rivers and streams.
Before and After: How do Streams and Rivers Behave Before and After a Volcanic Explosion?
Geology
Elementary School
In this free science fair project idea, we model the movement of worms and fish by analyzing their swim bladder and peristalsis movement methods.
Creative Movements: What Causes the Wavelike Movement in an Earthworm’s Body?
Oceans
Elementary School
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

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