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40 filtered results
2nd grade
Physical Science
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How A Kazoo Makes Sounds
How A Kazoo Makes Sounds
Science Project
How A Kazoo Makes Sounds
How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.
2nd grade
Science
Science Project
How to Make A Thermometer
How to Make A Thermometer
Science Project
How to Make A Thermometer
Kids will learn how to make a thermometer to to explore liquid density in this great science fair project. Which liquids are affected by temperature the most?
2nd grade
Science
Science Project
How to Make a Lemon Battery
How to Make a Lemon Battery
Science Project
How to Make a Lemon Battery
For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.
2nd grade
Science
Science Project
Water Pressure at Depth
Water Pressure at Depth
Science Project
Water Pressure at Depth
How does water pressure change with depth? Kids learn how pressure works underwater with this cool and easy demo.
2nd grade
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
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
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
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
Defying Gravity
Defying Gravity
Science Project
Defying Gravity
This science fair project idea investigates how magnetism can defy the force of gravity.
2nd grade
Science
Science Project
Measuring Magnification
Measuring Magnification
Science Project
Measuring Magnification
This science fair project idea investigates how optical distances change the apparent size of an object as seen through a magnifying lens.
2nd grade
Science
Science Project
Sinking Objects
Sinking Objects
Science Project
Sinking Objects
This science fair project idea investigates which objects float and sink in honey, water, and oil.
2nd grade
Science
Science Project
Parachutes
Parachutes
Science Project
Parachutes
This science fair project idea determines if the size of the parachute will change the rate at which an object falls.
2nd grade
Science
Science Project
Duck Feet
Duck Feet
Science Project
Duck Feet
This science fair project idea investigates if webbed feet help a duck (and others) swim.
2nd grade
Science
Science Project
Don't Be A Drag
Don't Be A Drag
Science Project
Don't Be A Drag
This science fair project idea investigates how the shape of an object affects drag.
2nd grade
Science
Science Project
Erosion
Erosion
Science Project
Erosion
The project investigates how water and movement affects erosion.
2nd grade
Science
Science Project
Hero's Engine: Example of Newton's Third Law
Hero's Engine: Example of Newton's Third Law
Science Project
Hero's Engine: Example of Newton's Third Law
In this cool engineering science fair project, kids learn how to build Hero's engine: an enlightening example of Newton's third law.
2nd grade
Science
Science Project
Floating Paper Clip
Science Project
Floating Paper Clip
In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.
2nd grade
Science
Science Project
The Single Fixed Pulley System
The Single Fixed Pulley System
Science Project
The Single Fixed Pulley System
Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.
2nd grade
Science
Science Project
Air Pressure Science Experiment: Balloon and a Jar
Air Pressure Science Experiment: Balloon and a Jar
Science Project
Air Pressure Science Experiment: Balloon and a Jar
In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.
2nd grade
Science
Science Project
How Well Does Sound Travel Through a Gas? A Liquid? A Solid?
Science Project
How Well Does Sound Travel Through a Gas? A Liquid? A Solid?
In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.
2nd grade
Science
Science Project
Glove In a Jar: Demonstration of a Closed System
Glove In a Jar: Demonstration of a Closed System
Science Project
Glove In a Jar: Demonstration of a Closed System
In this science fair experiment, children demonstrate the relationship between the amount of stuff and the amount of pressure in a closed system.
2nd grade
Science
Science Project
How Sound Travels Through Air and Solids
How Sound Travels Through Air and Solids
Science Project
How Sound Travels Through Air and Solids
This classic children's game demonstrates how sound travels through air vs. through a solid.
2nd grade
Science
Science Project
The Speed of Sound on a String
The Speed of Sound on a String
Science Project
The Speed of Sound on a String
This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.
2nd grade
Science
Science Project
Density Experiment
Density Experiment
Science Project
Density Experiment
This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.
2nd grade
Science
Science Project
Do Some Liquids Expand More than Others When Frozen?
Do Some Liquids Expand More than Others When Frozen?
Science Project
Do Some Liquids Expand More than Others When Frozen?
In this science fair project, kids observe the expansion of liquids when frozen and determine if some liquids expand more than others in the freezing process.
2nd grade
Science
Science Project