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Chemistry Science Fair Project Ideas

Browse from many free chemistry science fair project ideas. These chemistry science fair projects are a great place to find ideas for an upcoming science fair.

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Why doesn't the ocean freeze? Students answer this question by simulating the chemical composition and temperature of arctic waters in their own home.
Why Doesn't the Ocean Freeze?
Chemistry
Second Grade
This science fair project examines whether ocean water can be made safe to drink.
How to Make Salt Water Drinkable
Chemistry
Middle School
In this free science fair project idea, we model the hydrologic cycle of water movement.
The Hydrologic Cycle: The Movement of Water from Place to Place
Chemistry
Middle School
In this free science fair project idea, salt crystals dissolve in water, and then crystallize into epsom salt crystals.
Spindles: How Can You Observe the Natural Shape of Epsom Salt Crystals?
Chemistry
Elementary School
This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.
Homemade Lava Lamp
Chemistry
Elementary School
From soda and eggs to creepy crawlers and plants, science is a huge part of everyday life. Get your child excited about the science fair with these kid-friendly projects he's sure to love.
10 Science Fair Projects Kids Can't Resist (10)
Chemistry
Physics
Does salt content vary by the different locations in the bay during high and low tides? Test your hypothesis!
Got Salt? Comparing Salt Content During High and Low Tides
Chemistry
Middle School
Will increasing the amount of salt in water effect how slow or fast the water freezes?
Water Salinity
Chemistry
Third Grade
Why do irons rust? Can rusting be prevented in iron? Do this free science fair project and explore the different ways of preventing corrosion.
Keep Iron from Rusting
Chemistry
Middle School
This project examines the impact of fresh and coastal salt water on residential lawn growth.
Lawn Flooding: Fresh vs. Salt Water Damage
Chemistry
Elementary School
Check out this fun middle school science fair project idea on how mixture works and experiment with separating the particles in different kinds of mixtures.
Mix it Up! Separate Particles in Different Kinds of Mixture
Chemistry
Middle School
Explore fun facts about tropical rain forests and learn how to measure relative humidity in this cool science fair project idea.
Rain Forests and High Humidity: How to Measure Relative Humidity?
Chemistry
Middle School
A hydrometer is an instrument used to compare the density (mass per unit volume) of a liquid substance to the density of pure water. Learn how to make one!
Hydrometer
Chemistry
Middle School
The objective of this science fair project is to analyze the effects of salinity and temperature on water.
How Does Salinity and Temperature Affect the Density of Water?
Chemistry
Elementary School

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