Third Grade Resources

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3rd grade
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What Is a Compound Microscope?
Science Project
What Is a Compound Microscope?
What is a compound microscope? Kids find out by making one of their own in this cool science fair project.
3rd grade
Science
Science Project
Water Transport in Plants
Water Transport in Plants
Science Project
Water Transport in Plants
In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!
3rd grade
Science
Science Project
Rust Chemistry: How Does Rust Form?
Rust Chemistry: How Does Rust Form?
Science Project
Rust Chemistry: How Does Rust Form?
How does rust form? Kids will learn about the roles oxygen, water, and electrons play in rust chemistry in this cool science fair project idea.
3rd grade
Science
Science Project
Plastic Wrap Science Fair Project: Polymer Permeability
Science Project
Plastic Wrap Science Fair Project: Polymer Permeability
In this plastic wrap science fair project, you'll learn about polymer permeability and find out which plastic wrap keeps food from dehydrating best.
3rd grade
Science
Science Project
Paper Towel Science Project: Capillarity
Paper Towel Science Project: Capillarity
Science Project
Paper Towel Science Project: Capillarity
This easy and inexpensive paper towel science project introduces kids to important physical concepts like cohesion, adhesion, and capillarity.
3rd grade
Science
Science Project
Factors Affecting Solubility
Science Project
Factors Affecting Solubility
Here is a fun middle school science project on factors affecting solubility. Learn how dissolved solids can "crash out" to form crystals when conditions change.
3rd grade
Science
Science Project
Coriolis Effect and Hurricanes
Coriolis Effect and Hurricanes
Science Project
Coriolis Effect and Hurricanes
Learn about the role of Earth's rotation on the Coriolis Effect and hurricanes in this science project. Model the Coriolis Effect on a hurricane's direction.
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
Third-Class Levers in the Human Body
Science Project
Third-Class Levers in the Human Body
Did you know your body is full of simple machines? This project looks at one of the third-class levers in the human body: your arm!
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
Cell Membrane
Cell Membrane
Science Project
Cell Membrane
In this science fair project you will make a model of a cell membrane using very simple material.
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
Mental Mix Up: Experimenting with Your Ability to Focus
Mental Mix Up: Experimenting with Your Ability to Focus
Science Project
Mental Mix Up: Experimenting with Your Ability to Focus
Observe how your brain works while it is focused on one thing, and how it works while you are distracted by another thing.
3rd grade
Science
Science Project
Do Women Have a Better Sense of Smell?
Do Women Have a Better Sense of Smell?
Science Project
Do Women Have a Better Sense of Smell?
Determine if gender affects the ability to identify different smells.
3rd grade
Social studies
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
Latent Fingerprints
Science Project
Latent Fingerprints
Science fair project that develops latent fingerprints on a non-porous objects by converting superglue from a solid state to a gaseous state.
3rd grade
Science
Science Project
Hot Dog Mummy
Science Project
Hot Dog Mummy
In this experiment you will replicate the mummification process by making a hot dog mummy.
3rd grade
Science
Science Project
Forensic Entomology and the Life Cycle of the Blowfly
Forensic Entomology and the Life Cycle of the Blowfly
Science Project
Forensic Entomology and the Life Cycle of the Blowfly
Study the life cycle of the common blowfly as it relates to forensic investigation. Record the first time you see flies, maggots, and eggs.
3rd grade
Science
Science Project
Can Jell-O be Made With Just Warm Water Instead of Boiling Hot and Then Cold?
Can Jell-O be Made With Just Warm Water Instead of Boiling Hot and Then Cold?
Science Project
Can Jell-O be Made With Just Warm Water Instead of Boiling Hot and Then Cold?
Do you love to make Jell-O? Find out in this science fair project idea if it is possible to make Jell-O with just warm water.
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
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
Geology 101
Geology 101
Science Project
Geology 101
Science fair project that examines the behavior of water and gravel in creek beds and the formation of sedimentary rocks.
3rd grade
Science
Science Project

Third Grade Resources

Looking for third grade help? These third grade resources offer multiple ways to support learners, from lesson plans to activities to worksheets. We also offer interactive games that work times tables. For those teaching third grade, you may want to check out our collection of exercises. Those working with older learners should browse our fourth grade resources.

Resources to Guide Third-graders to the Next Level

Third grade marks the center of elementary education. New adult teeth have replaced the baby ones that were there just the year before. With bigger teeth come bigger challenges as school starts gets more serious. The resource library is stocked with popular skills-based games, comprehensive workbooks, and easy-to-follow lesson plans that will help third-graders rise to the occasion.

Hundreds of highly-rated worksheets created by expert educators are available for download in the library. The activities run the gamut of the third-grade curriculum with lessons on fractions, multiplication and division, word problems to test comprehension and figurative language practice.

Guided lesson plans with suggested time instructions help parents and teachers effectively execute comprehensive exercises. Subjects range from root word prefixes to the difference between facts and opinions. The alluring activities have practical, real-world purposes that third-graders can take beyond the study desk.

In addition to classic worksheet and lesson plan methods, the Learning Library’s entertaining online games, hands-on activities, and interesting science projects add a layer of engagement to education that helps growing brains absorb and retain new information.