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Science Fair Project Ideas

Find the physical science and earth & space science, 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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In this experiment, the weight of aluminum cans will be compared.
Illuminating Aluminum
Ecology
Elementary School
The objective of this science fair project is the compare the rate and efficiency of disaccharide and polysaccharide fermentation by yeast.
Can Yeast Ferment Polysaccharides as Efficiently as Disaccharides?
Chemistry
High 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 science fair project idea determines the most effective method of preserving food.
Preserving Foods
Physical Science
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
Earth & Space Science
Weather and Climate
This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.
Bridge Project
Physics
Elementary School
Using a nine-volt battery to create an electrical field around a nail, students make their own electromagnet.
DIY Electromagnet
Physics
Fourth Grade
In this science fair project, students examine how the flow rate in a stream affects the growth of aquatic plants.
Flow Rate and Plant Growth
Ecology
Sixth Grade
In this free science fair project idea, we create our own dinosaur footprint replicas by making animal tracks with our hands.
Imprints: How Were Dinosaur Tracks Formed?
Geology
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
In this free science fair project idea, we learn about how scientists use indicators to predict the earth's climate and geology many years ago.
Indicators: How do Scientists Gather Clues to Climates of the Past?
Geology
Ecology
Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.
Forensic Entomology and the Life Cycle of the Blowfly
Physical Science
First Grade
This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.
Which Substance When Dissolved in Water will Conduct an Electrical Current?
Chemistry
Electricity and Magnetism
In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!
Self-Inflating Balloons
Chemistry
Elementary School
A project to reinforce learning about the layers of the rainforest, rain forest ecosystem, and the greenhouse effect.
Build a Rainforest
Ecology
Middle School

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