3rd Grade Science Fair Projects

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205 filtered results
3rd grade
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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.
3rd 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
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
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
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
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
The Rings of Saturn: A Scale Model
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
How Does Frost Form?
How Does Frost Form?
Science Project
How Does Frost Form?
How does frost form? How fast does it form? Do this simple science project using a plastic glass, rock salt and some water to learn about deposition.
3rd grade
Science
Science Project
How Do Icicles Form?
Science Project
How Do Icicles Form?
How do icicles form and what do they look like? Do this free science fair project and watch the formation of icicles occur right before your eyes.
3rd grade
Science
Science Project
The Limewater Carbon Dioxide Test
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
Why Does Honey Crystallize?
Why Does Honey Crystallize?
Science Project
Why Does Honey Crystallize?
Why does honey crystallize? This science fair project project answers this question and identifies the variable that makes this sweet solute crystallize faster.
3rd grade
Science
Science Project
Bouncing Ball Physics: What is Elasticity?
Bouncing Ball Physics: What is Elasticity?
Science Project
Bouncing Ball Physics: What is Elasticity?
What is elasticity? Students will investigate how this concept applies to bouncing ball physics by testing the bounces of balls made out of different materials.
3rd grade
Science
Science Project
What Is the Best Way to Wash Your Hands?
What Is the Best Way to Wash Your Hands?
Science Project
What Is the Best Way to Wash Your Hands?
This science project teaches young students about germs, bacteria, and the importance of washing their hands. Students will test what is the best way to wash.
3rd grade
Science
Science Project
Deer Behavior
Deer Behavior
Science Project
Deer Behavior
This science project challenges students to study deer behavior in their natural habitat- the feeding patterns, social behaviors, male to female ratio, etc.
3rd grade
Science
Science Project
Why Do Greens Turn Brown?
Why Do Greens Turn Brown?
Science Project
Why Do Greens Turn Brown?
This science fair project teaches students about wilting and browning of salad greens.
3rd grade
Science
Science Project
Speedy Snail Race
Speedy Snail Race
Science Project
Speedy Snail Race
This science experiment has students test whether a snail moves faster on concrete or dirt.
3rd grade
Science
Science Project
Clear or Opaque?
Clear or Opaque?
Science Project
Clear or Opaque?
This science project explores the concept of being opaque or clear. Can you make something clear opaque? Or something opaque clear?
3rd grade
Science
Science Project
Keeping Cut Flowers Fresh
Keeping Cut Flowers Fresh
Science Project
Keeping Cut Flowers Fresh
This science experiment tests whether warm or cold water works best in making cut flowers last longer.
3rd grade
Science
Science Project
Which Food Will Mold the Fastest?
Which Food Will Mold the Fastest?
Science Project
Which Food Will Mold the Fastest?
This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.
3rd grade
Science
Science Project
Can You Keep a Secret?
Science Project
Can You Keep a Secret?
Stories change as you retell them. The objective of this science fair project is to demonstrate how information gets interpreted, distorted and changed.
3rd grade
Science
Science Project
Geography, Latitude, and the North Star: Where Am I?
Geography, Latitude, and the North Star: Where Am I?
Science Project
Geography, Latitude, and the North Star: Where Am I?
Find the North Star, and measure your latitude! The purpose of this science fair project is to find latitude and learn about geographic locations.
3rd grade
Science
Science Project
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.
3rd grade
Science
Science Project
Outer Space In My Yard
Science Project
Outer Space In My Yard
Collect meteorite dust with a magnet in your very own backyard! The objective of this science fair project is to gather meteorite dust to study outer space.
3rd grade
Science
Science Project
The Fungus Among Us
The Fungus Among Us
Science Project
The Fungus Among Us
The purpose of this science fair project is to demonstrate how yeast, a fungus, causes bread to rise.
3rd grade
Science
Science Project
Tangential Velocity and Circular Motion Experiment
Science Project
Tangential Velocity and Circular Motion Experiment
In this simple circular motion experiment, you'll observe tangential velocity and learn about how acceleration and centripetal force affect an object.
3rd grade
Science
Science Project

3rd Grade Science Fair Projects

For their 3rd grade science projects, kids begin investigating the answers to their questions much like actual scientists would. Instead of simply collecting qualitative data (describing what they observe), 3rd graders graduate to collecting and presenting quantitative data by measuring their results with increased accuracy, communicating their findings in simple charts and graphs, and describing their observations in written prose. Education.com's collection of 3rd grade science fair projects give kids the opportunity to apply their newly acquired skills to thinking critically about the world around them while having serious fun in the process. Browse our collection of third grade science projects and experiments by using the boxes to the left to filter by topic and find an exciting science project your child will be sure to love.