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Science Fair Project Ideas

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Baseball Science Fair Project: Center of Percussion
Science Project
Baseball Science Fair Project: Center of Percussion
This baseball science fair project explores the concept of an object's center of percussion to determine if the "sweet spot" has a scientific basis.
Science
Science Project
Does Ultraviolet (UV) Light Pass through Some Colors More than Others?
Science Project
Does Ultraviolet (UV) Light Pass through Some Colors More than Others?
The purpose of this science fair project is to explore whether UV light passes through some colors and not others by looking at blue, red, purple, and clear.
2nd grade
Science
Science Project
Inverse Square Law: How Does Distance Affect the Spreading of Light?
Inverse Square Law: How Does Distance Affect the Spreading of Light?
Science Project
Inverse Square Law: How Does Distance Affect the Spreading of Light?
How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.
4th grade
Science
Science Project
Plane Mirror Reflection Experiment
Plane Mirror Reflection Experiment
Science Project
Plane Mirror Reflection Experiment
In this cool physics experiment, use double plane mirrors at various angles to learn about light reflection. Then, see if you can solve a puzzling problem!
5th grade
Science
Science Project
Temperature, Air Humidity and Static Electricity
Temperature, Air Humidity and Static Electricity
Science Project
Temperature, Air Humidity and Static Electricity
What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.
4th grade
Science
Science Project
Microwave Candy: Do Some Colors of M&Ms Melt Faster than Others?
Microwave Candy: Do Some Colors of M&Ms Melt Faster than Others?
Science Project
Microwave Candy: Do Some Colors of M&Ms Melt Faster than Others?
The goal of this fun science fair project idea is to microwave candy and investigate: do some colors of M&Ms melt faster than others?
1st grade
Science
Science Project
Heat Capacity of Water vs. Heat Capacity of Oil
Heat Capacity of Water vs. Heat Capacity of Oil
Science Project
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.
5th grade
Science
Science Project
What Direction Should Solar Panels Face?
What Direction Should Solar Panels Face?
Science Project
What Direction Should Solar Panels Face?
What direction should solar panels face? It's not the direction you might think! This free and enlightening science fair project helps kids discover the answer.
Science
Science Project
Thermal Conductivity of Metals: Which Metal Is the Best Conductor of Heat?
Thermal Conductivity of Metals: Which Metal Is the Best Conductor of Heat?
Science Project
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.
4th grade
Science
Science Project
Transpiration Experiment
Transpiration Experiment
Science Project
Transpiration Experiment
In this enlightening transpiration experiment, kids will explore how the loss of water from plants through transpiration contributes to the water cycle.
3rd grade
Science
Science Project
Caffeine and Heart Rate: What Is the Effect of Caffeine on Heart Rate?
Caffeine and Heart Rate: What Is the Effect of Caffeine on Heart Rate?
Science Project
Caffeine and Heart Rate: What Is the Effect of Caffeine on Heart Rate?
Is there a relationship between caffeine and heart rate? Students will determine the effect of caffeine on heart rate in this fun science fair project.
5th grade
Science
Science Project
Do Gas Stations Cause Soil Pollution?
Do Gas Stations Cause Soil Pollution?
Science Project
Do Gas Stations Cause Soil Pollution?
In this science experiment, test the pH of soil surrounding a gas station to determine if gas stations have a negative effect on the environment.
Science
Science Project
Identifying Rocks and Minerals for Kids
Identifying Rocks and Minerals for Kids
Science Project
Identifying Rocks and Minerals for Kids
Check out this cool science fair project on identifying rocks and minerals for kids.
Science
Science Project
Do Hand Soaps and Sanitizers Prevent the Growth of Bread Mold?
Do Hand Soaps and Sanitizers Prevent the Growth of Bread Mold?
Science Project
Do Hand Soaps and Sanitizers Prevent the Growth of Bread Mold?
Do hand soaps and sanitizers prevent the growth of bread mold? If so, why? Kids will find out with this fun and informative science fair project idea.
3rd grade
Science
Science Project
Garlic: Antibacterial and Antimicrobial Properties
Garlic: Antibacterial and Antimicrobial Properties
Science Project
Garlic: Antibacterial and Antimicrobial Properties
Is garlic antibacterial? Antimicrobial? Kids find out by using common kitchen equipment and ingredients in this cool and easy microbiology science fair project.
Science
Science Project
Salinity and Hatching Brine Shrimp Eggs
Salinity and Hatching Brine Shrimp Eggs
Science Project
Salinity and Hatching Brine Shrimp Eggs
Brine shrimp usually live in saltwater. Investigate how salt concentration (salinity) affects the rate at which brine shrimp eggs hatch.
5th grade
Science
Science Project
Compost Ingredients
Compost Ingredients
Science Project
Compost Ingredients
The purpose of this science fair project is to determine which conditions and materials quicken the composting process to make the best compost.
4th grade
Science
Science Project
Why Do Apples Turn Brown?
Why Do Apples Turn Brown?
Science Project
Why Do Apples Turn Brown?
In this fun science project, learn about what happens to cut fruit and experiment with how to stop apples from turning brown.
4th grade
Science
Science Project
Sink or Swim: Calculating Density of Fruits and Vegetables
Sink or Swim: Calculating Density of Fruits and Vegetables
Science Project
Sink or Swim: Calculating Density of Fruits and Vegetables
Sink or swim? Calculate the density of various fruits and vegetables using water and a kitchen scale.
5th grade
Science
Science Project
Show the Direction of Magnetic Field Lines
Show the Direction of Magnetic Field Lines
Science Project
Show the Direction of Magnetic Field Lines
Kids will learn how to show the direction of magnetic field lines and create a permanent model using iron filings in this great science fair project idea.
2nd grade
Science
Science Project
How Does a Compass Work?
How Does a Compass Work?
Science Project
How Does a Compass Work?
How does a compass work? What's a magnetic field? Kids will build their own compass at home to find the answers in this great science fair project idea.
3rd grade
Science
Science Project
Magnetic Field Strength vs. Distance
Magnetic Field Strength vs. Distance
Science Project
Magnetic Field Strength vs. Distance
How can we describe the relationship of magnetic field strength vs. distance? Kids will find out with this free science fair project idea.
2nd grade
Science
Science Project
Does Electricity Move Better through Thick Wires or Thin Ones?
Does Electricity Move Better through Thick Wires or Thin Ones?
Science Project
Does Electricity Move Better through Thick Wires or Thin Ones?
Does electricity move better through thick wires or thin ones? kids will conduct this classic electricity experiment for this science fair project.
5th grade
Science
Science Project
Magnet Experiment: Are Two Magnets Twice as Strong as One?
Magnet Experiment: Are Two Magnets Twice as Strong as One?
Science Project
Magnet Experiment: Are Two Magnets Twice as Strong as One?
In this cool science experiment, learn about magnetism and poles, and test magnet strength to find out if two magnets are twice as strong as one.
2nd grade
Science
Science Project
Magnet Science Fair Project: How to Measure the Strength of a Magnet
Magnet Science Fair Project: How to Measure the Strength of a Magnet
Science Project
Magnet Science Fair Project: How to Measure the Strength of a Magnet
Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.
3rd grade
Science
Science Project
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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.