Third Grade Resources

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3rd grade
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Does Hot Water Boil Faster Than Cold?
Does Hot Water Boil Faster Than Cold?
Science Project
Does Hot Water Boil Faster Than Cold?
Discover whether cold or hot water from the faucet will boil faster on the stove.
3rd grade
Science
Science Project
Get Cracking
Get Cracking
Science Project
Get Cracking
Science fair project that determines whether cooling eggs helps them be peeled more easily. Compare the time it took to peel each egg.
3rd grade
Science
Science Project
How to Stop Soda From Exploding
How to Stop Soda From Exploding
Science Project
How to Stop Soda From Exploding
This science fair project investigates whether tapping the top or the side of the can will stop a vigorously-shaken can of soda from exploding.
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
Too Much Sodium?
Too Much Sodium?
Science Project
Too Much Sodium?
Young scientists will investigate people's preferences for saltiness, and make some inferences about genetics and diet.
3rd grade
Science
Science Project
Understanding Absorption
Understanding Absorption
Science Project
Understanding Absorption
Understanding absorption means understanding why certain fibers and materials can absorb water! Kids will see absorption in action in this simple project.
3rd grade
Science
Science Project
What Is Persistence of Vision?
What Is Persistence of Vision?
Science Project
What Is Persistence of Vision?
What is persistence of vision? With this hands-on science fair project idea, students will demonstrate this cool and dramatic phenomenon in their own classroom.
3rd grade
Science
Science Project
Homemade Cleaners: Getting Squeaky Clean
Homemade Cleaners: Getting Squeaky Clean
Science Project
Homemade Cleaners: Getting Squeaky Clean
Cleaning can be a chore, but not with this sudsy experiment!
3rd grade
Science
Science Project
Bird Space
Bird Space
Science Project
Bird Space
Discover flight initiation distance as you play around in the park with this fun bird watching project!
3rd grade
Science
Science Project
Water Salinity
Water Salinity
Science Project
Water Salinity
Will increasing the amount of salt in water effect how slow or fast the water freezes?
3rd grade
Science
Science Project
Ivory Soap Experiment
Ivory Soap Experiment
Science Project
Ivory Soap Experiment
In this classic Ivory soap experiment, kids learn what happens to different types of soap in the microwave, and why!
3rd grade
Science
Science Project
What Causes Dilated Pupils?
Science Project
What Causes Dilated Pupils?
What causes dilated pupils? Young scientists will find out by applying what they already know about changes in pupil size and making models of the pupil.
3rd grade
Science
Science Project
Pineapple Enzyme
Pineapple Enzyme
Science Project
Pineapple Enzyme
Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.
3rd grade
Science
Science Project
Which Gum has the Longest Lasting Flavor?
Science Project
Which Gum has the Longest Lasting Flavor?
Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!
3rd grade
Science
Science Project
Melting Crayons
Melting Crayons
Science Project
Melting Crayons
Crayons aren't just good for creating colorful masterpieces -- they're also great for science!
3rd grade
Science
Science Project
Naked Egg
Naked Egg
Science Project
Naked Egg
While your cells are much too small to see without a microscope, you can create the look of a cell in your very own home with just an egg and vinegar!
3rd grade
Science
Science Project
Baking Soda and Vinegar Balloon
Baking Soda and Vinegar Balloon
Science Project
Baking Soda and Vinegar Balloon
How powerful is the reaction between baking soda and vinegar? Find out here!
3rd grade
Science
Science Project
Soda Calories
Soda Calories
Science Project
Soda Calories
Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.
3rd grade
Science
Science Project
DIY Compost: Aerobic and Anaerobic Decomposition
DIY Compost: Aerobic and Anaerobic Decomposition
Science Project
DIY Compost: Aerobic and Anaerobic Decomposition
What's the best way to make DIY compost? Kids will learn about aerobic and anaerobic decomposition while learning to appreciate the value of composting.
3rd grade
Science
Science Project
Pruning Tomato Plants
Pruning Tomato Plants
Science Project
Pruning Tomato Plants
In this experiment, kids will see if pruning tomato plants makes them more fruitful and learn about the factors that contribute to a plant's fruit production.
3rd grade
Science
Science Project
Cricket Behavior
Cricket Behavior
Science Project
Cricket Behavior
Kids will make predictions about cricket behavior by conducting this fun and easy experiment which simulates different environments for crickets.
3rd grade
Science
Science Project
Floating Balloons
Floating Balloons
Science Project
Floating Balloons
This cool science fair project teaches kids about temperature, density and buoyancy using balloons that float with normal air. No helium required!
3rd grade
Science
Science Project
Melting Ice Experiment
Melting Ice Experiment
Science Project
Melting Ice Experiment
How does salinity affect the point at which water freezes? Kids will find out by performing this cool melting ice experiment.
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.