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Science Fair Project Ideas

Education.com has assembled a vast collection of science fair project ideas written by science teachers, professional scientists, and educational consultants on popular science fair topics ranging from physics and chemistry to biology and even sociology. We offer free science fair ideas suitable for every grade level, be it preschool, kindergarten, elementary school, middle school, or high school. Check the boxes in the sidebar to filter your results, or use the search bar to find that perfect science fair project or experiment your child will be sure to love.

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1,622 results

Building a Better Battery

Examine how a battery can be made from everyday materials.

What Makes Ice Melt Faster?

This science fair project explores how salt and sugar affect the melting rate of ice in water.

Transpiration Experiment

In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.

How Stress Affects the Body

This experiment investigates if stress alters body temperature.

Which Fruit Has the Most Vitamin C?

Figure out which fruit has the most vitamin C (ascorbic acid) in this fun science project!

Soil Porosity: Sand, Silt, and Clay

In this science project, learn about soil porosity and measure the percent porosity of sand, silt, and clay.

Thermal Conductivity of Metals: Which Metal Is the Best Conductor of Heat?

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.

Denaturing Proteins

In this science fair experiment, high school students determine if all proteins denature at the same temperature.

Soccer Physics: Does the Amount of Air Inside the Ball Affect How Far It Goes?

The purpose of this science project is to determine whether the amount of air in a soccer ball affects how far it goes when kicked.

In this CD hovercraft science project, students will construct their own DIY hovercraft.

Magnets and Temperature: Does the Temperature of a Magnet Affect its Strength?

Does the temperature of a magnet affect its strength? Learn about the relationship between magnets and temperature with this cool physics science fair project.

How Does Mold Grow?

How does mold grow? Kids find out by testing different conditions to measure mold growth rate and learn about what factors cause mold to grow more quickly.

Growing Crystals

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

Heat Capacity of Water vs. Heat Capacity of Oil

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

Fires Burn in Different Colors

In this experiment you observe fires of different colors: white, blue-violet, and green.

Growing in the Dark: Plants and Light

Plants and light seem to be good buddies, but how far does the friendship really go?

Greenhouse Project

This science fair project idea teaches how the gases and pollution in the air affect the earth's atmosphere temperature.

Faraday's Experiment

High school students recreate Michael Faraday's experiment in this cool science fair project that induces current in a coil of wire.

Dry Ice Effects

In this experiment you will become familiar with the properties of dry ice while creating interesting effects like ice bubbles!

Leaf Chromatography

Check out this fun leaf chromatography science fair project idea for middle school students and discover the hidden pigments in leaves.

Does Chewing Gum Make You Smarter?

This experiment will evaluate if chewing gum affects studentsâ test performance.

Rate of Diffusion

Kids learn about Brownian motion, diffusion, and how temperature is a key factor affecting the rate of diffusion in this cool science project.

Does Hot Water Freeze Faster Than Cold Water?

Most people assume that cold water freezes more quickly, but could that be false? Does hot water freeze faster than cold water? Let's find out!

This science fair project idea determines the operating differences of AAA, AA, C, D batteries all with a 1.5 volt rating.

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