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Science
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
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
What Are the Layers of the Earth?
Science project
What Are the Layers of the Earth?
Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.
2nd grade
Science
Science project
Air Density, Convection, and the Movement of Air Molecules
Science project
Air Density, Convection, and the Movement of Air Molecules
In this science fair project, we learn how air molecules move as a result of density, convection, and air currents.
5th grade
Science
Science project
Heat Convection in Liquids
Science project
Heat Convection in Liquids
In this science experiment, observe convection currents forming and learn about how heat energy moves in liquids from hot to cooler areas through convection.
5th grade
Science
Science project
The Limewater Carbon Dioxide Test
Science project
The Limewater Carbon Dioxide Test
Kids will conduct a cool limewater carbon dioxide test that can be performed with common household materials to learn about the chemistry of this common gas.
3rd grade
Science
Science project
The Chemistry of Dyeing Easter Eggs
Science project
The Chemistry of Dyeing Easter Eggs
What's the chemistry behind dyeing Easter eggs? Will adding vinegar to dye help the eggshell absorb the color? This colorful science project has the answers!
4th grade
Science
Science project
Solar Eclipse Model
Science project
Solar Eclipse Model
Check out this fun science fair project idea for 1st grade: a solar eclipse model that demonstrates total, partial, and annular solar eclipses.
1st grade
Science
Science project
Why Does the Moon Glow?
Science project
Why Does the Moon Glow?
The moon doesn't produce its own light, so why can we see it shining in the sky? Learn about reflection and planetshine in this fun and easy science project!
3rd grade
Science
Science project
What Causes the Seasons to Change?
Science project
What Causes the Seasons to Change?
What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.
4th grade
Science
Science project
The Rings of Saturn: A Scale Model
Science project
The Rings of Saturn: A Scale Model
Saturn is the ringed planet in our solar system, a gas giant with rings made of ice and dust. Let's make a cool scale model with an old CD and some glitter!
3rd grade
Science
Science project
Aquatic Respiration
Science project
Aquatic Respiration
How do fish breathe? How do gills work? In this science project, learn about aquatic respiration and find a fish's breathing rate in different temperatures.
4th grade
Science
Science project
How to Measure Viscosity of Liquids
Science project
How to Measure Viscosity of Liquids
Kids will learn how to measure the viscosity of liquids by making their own homemade viscometer in this great science fair project idea.
5th grade
Science
Science project
Seafloor Spreading Model
Science project
Seafloor Spreading Model
In this experiment, you'll make a seafloor spreading model to learn more about how plate tectonics work and create mid-ocean ridges.
4th grade
Science
Science project
What is Topography?
Science project
What is Topography?
What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.
3rd grade
Science
Science project
Scale Model of the Solar System
Science project
Scale Model of the Solar System
In this fun science fair project, make two different scale models of our solar system using Astronomical Units and planets' relative size!
4th grade
Science
Science project
Magnifying Power and Focal Length of a Lens
Science project
Magnifying Power and Focal Length of a Lens
Learn how the focal length of a lens affects a magnifying glass's magnifying power in this cool science fair project idea for 8th grade.
Middle school
Science
Science project
Use the Altitude of Polaris to Find Latitude
Science project
Use the Altitude of Polaris to Find Latitude
In this project, all you need is a protractor to learn how to use the altitude of Polaris to find latitude on Earth. Polaris is also known as the North Star.
4th grade
Science
Science project
What Causes the Phases of the Moon?
Science project
What Causes the Phases of the Moon?
What cause the phases of the moon? Make a model to see how the positions of the Sun, Moon, and Earth cause the crescent, gibbous, quarter, full, and new moon.
5th grade
Science
Science project
Handedness and Footedness Test
Science project
Handedness and Footedness Test
Handedness and footedness refer to whether people prefer to use their left or right hand and foot. In this experiment, test hand and foot dominance.
3rd grade
Science
Science project
Regrow Cabbage: Vegetative Reproduction and Cloning Plants
Science project
Regrow Cabbage: Vegetative Reproduction and Cloning Plants
What is vegetative reproduction? Find out how you can clone plants and regrow cabbage from a stem in this cool experiment!
Middle school
Science
Science project
Drum Size and Pitch
Science project
Drum Size and Pitch
How does the size of a vibrating surface affect the pitch of a drum? Learn about drum size and pitch with this easy science fair project idea.
2nd grade
Science
Science project
Parts of a Bean Seed
Science project
Parts of a Bean Seed
Check out this fun and easy science fair project idea on germination of a seed and learn to identify exterior and interior parts of a bean seed.
5th grade
Science
Science project
Factors Affecting Seed Germination
Science project
Factors Affecting Seed Germination
This science fair project looks one of the most important factors affecting seed germination: water. A fun and easy plant biology experiment for 3rd graders.
3rd grade
Science
Science project
Positive and Negative Geotropism
Science project
Positive and Negative Geotropism
Check out this fun and easy 4th grade science fair project idea that tests how gravity induces positive and negative geotropism (gravitropism) in bean plants.
4th grade
Science
Science project

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