3rd Grade Science Fair Projects

205 filtered results
205 filtered results
3rd grade
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Factors Affecting Seed Germination
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
Animal Vision: Ocelli, Compound Eyes, and Camera Eyes
Animal Vision: Ocelli, Compound Eyes, and Camera Eyes
Science Project
Animal Vision: Ocelli, Compound Eyes, and Camera Eyes
In this project, learn about animal vision and different kinds of eyes: ocelli, compound eyes, and camera eyes. Find out what a jellyfish or grasshopper sees!
3rd grade
Science
Science Project
3D Animal Cell Model
Science Project
3D Animal Cell Model
Build a 3d animal cell model with this cool science fair project, which helps kids visualize and understand the function of a cell's parts and organelles.
3rd grade
Science
Science Project
How to Tell Time by the Sun
How to Tell Time by the Sun
Science Project
How to Tell Time by the Sun
Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.
3rd grade
Science
Science Project
Magic Glass of Water
Magic Glass of Water
Science Project
Magic Glass of Water
Demonstrate the properties of pressure and surface tension to explain how water can stay inside an upside down glass using cardboard.
3rd grade
Science
Science Project
Cheese Making
Cheese Making
Science Project
Cheese Making
Science fair project in which you make cheese in your own kitchen using milk, lemon juice and cheese cloth.
3rd grade
Science
Science Project
Do Plants Need Water?
Do Plants Need Water?
Science Project
Do Plants Need Water?
Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.
3rd grade
Science
Science Project
Crystal Wonderland
Crystal Wonderland
Science Project
Crystal Wonderland
The objective of this science fair project is to examine the effects of temperature on salt and water solutions, as they form crystals over time.
3rd grade
Science
Science Project
Homemade Butter
Homemade Butter
Science Project
Homemade Butter
Science fair project idea which teaches you how to make butter by separating cream into butter and buttermilk.
3rd grade
Science
Science Project
Under What Conditions Do Potatoes Sprout The Fastest
Under What Conditions Do Potatoes Sprout The Fastest
Science Project
Under What Conditions Do Potatoes Sprout The Fastest
Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!
3rd grade
Science
Science Project
Mylar vs. Latex Balloons
Mylar vs. Latex Balloons
Science Project
Mylar vs. Latex Balloons
Learn whether Mylar Balloons last longer than Latex Balloons or vice versa.
3rd grade
Science
Science Project
Does A Longer Paper Airplane Fly Farther than a Wide One?
Does A Longer Paper Airplane Fly Farther than a Wide One?
Science Project
Does A Longer Paper Airplane Fly Farther than a Wide One?
Find out whether a longer airplane will fly farther or a wider paper airplane.
3rd grade
Science
Science Project
Sizing Up Marshmallows
Sizing Up Marshmallows
Science Project
Sizing Up Marshmallows
Marshmallows are made of sugar, water, and air pockets. Since the marshmallow is flexible, will air pressure cause it to expand when heated in a microwave?
3rd grade
Science
Science Project
How Important Are Cats' Whiskers?
How Important Are Cats' Whiskers?
Science Project
How Important Are Cats' Whiskers?
In this experiment you observe and determine how well your cat uses his whiskers to navigate through a maze.
3rd grade
Science
Science Project
Who’s Most Ticklish?
Who’s Most Ticklish?
Science Project
Who’s Most Ticklish?
This project determines what category of person is most likely to be ticklish.
3rd grade
Science
Science Project
The Ghost in the Tube
The Ghost in the Tube
Science Project
The Ghost in the Tube
In this science fair project, you'll make a "ghost" appear in a test tube, and learn about what happens when hot water and cold water interact.
3rd grade
Science
Science Project
Is there a Relationship between Tempo and Genre?
Is there a Relationship between Tempo and Genre?
Science Project
Is there a Relationship between Tempo and Genre?
Which music genres have the fastest tempos? The slowest? This experiment determines if there's a relationship between beats per minute in a song and its genre.
3rd grade
Science
Science Project
Taste Perception
Taste Perception
Science Project
Taste Perception
This project examines whether people's taste perception is influenced by what they see.
3rd grade
Social studies
Science Project
Feeding Plants
Feeding Plants
Science Project
Feeding Plants
This project explores whether plants can live and grow when "watered" with juice, soda, or milk.
3rd grade
Science
Science Project
Eureka! Volume and the Displacement of Water
Eureka! Volume and the Displacement of Water
Science Project
Eureka! Volume and the Displacement of Water
This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.
3rd grade
Science
Science Project
Demonstrating Photosynthesis: Writing in Grass
Demonstrating Photosynthesis: Writing in Grass
Science Project
Demonstrating Photosynthesis: Writing in Grass
This fun experiment provides a concrete and visually striking illustration of photosynthesis.
3rd grade
Science
Science Project
What Lives in the Air Conditioner?
What Lives in the Air Conditioner?
Science Project
What Lives in the Air Conditioner?
In this science fair projects, students will grow out the bacteria that collect on air conditioner filters.
3rd grade
Science
Science Project
Create Your Own Earth Model
Create Your Own Earth Model
Science Project
Create Your Own Earth Model
In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.
3rd grade
Science
Science Project
Does Hot Water Freeze Faster Than Cold Water?
Does Hot Water Freeze Faster Than Cold Water?
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!
3rd grade
Science
Science Project
Crayon Rock Cycle Experiment
Crayon Rock Cycle Experiment
Science Project
Crayon Rock Cycle Experiment
Did you even wonder why some rocks are round and smooth while others are broken up into small pieces?
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.