3rd Grade Science Fair Projects

205 filtered results
205 filtered results
3rd grade
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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
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
Does Length Have an Effect on Speed?
Does Length Have an Effect on Speed?
Science Project
Does Length Have an Effect on Speed?
This science fair project idea explores if the length of the string that an object is suspended on has an effect on how fast or slow it swings.
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
Does Gelatin Slow Down the Melting of Freezer Pops?
Does Gelatin Slow Down the Melting of Freezer Pops?
Science Project
Does Gelatin Slow Down the Melting of Freezer Pops?
This science fair project idea examines whether adding gelatin causes a solid to have a higher melting point and/or melt slower.
3rd grade
Science
Science Project
Talking to Plants
Talking to Plants
Science Project
Talking to Plants
This science fair project idea explores whether talking to a plant will help it grow.
3rd grade
Science
Science Project
Upside-Down Plants
Upside-Down Plants
Science Project
Upside-Down Plants
This science fair project idea examines whether plants are still able to grow normally if they are turned upside-down.
3rd grade
Science
Science Project
Effective Hand Washing
Effective Hand Washing
Science Project
Effective Hand Washing
This science fair project idea determines which method of hand cleansing is the most effective.
3rd grade
Science
Science Project
Best Insulators
Best Insulators
Science Project
Best Insulators
This science fair project idea examines which type of insulation holds in the most heat.
3rd grade
Science
Science Project
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
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
What Animals are Most Popular? A Data Analysis Project
What Animals are Most Popular? A Data Analysis Project
Science Project
What Animals are Most Popular? A Data Analysis Project
What animals are most popular? This project affords practice in data-collection, record-keeping and data-analysis through the investigation of this question.
3rd grade
Science
Science Project
How Do Seeds Hitchhike?
How Do Seeds Hitchhike?
Science Project
How Do Seeds Hitchhike?
This science fair project examines how seeds hitchhike on animals and clothing.
3rd grade
Science
Science Project
Water and Mosses
Water and Mosses
Science Project
Water and Mosses
This science fair project will help students learn about non-vascular plants, such as mosses.
3rd grade
Science
Science Project
Streak Test
Streak Test
Science Project
Streak Test
In this science fair project, students use the streak test to tell minerals apart from each other.
3rd grade
Science
Science Project
How Does Pressure Change Minerals?
How Does Pressure Change Minerals?
Science Project
How Does Pressure Change Minerals?
In this science fair project, students learn how pressure can make the minerals in a rock line up in the same direction and form bands and foliation.
3rd grade
Science
Science Project
The Mohs Test: How to Compare the Hardness of Minerals
The Mohs Test: How to Compare the Hardness of Minerals
Science Project
The Mohs Test: How to Compare the Hardness of Minerals
This science project uses Mohsâ Hardness Test to show kids how to compare the hardness of different types of minerals.
3rd grade
Science
Science Project
Popcorn Pumice: Exploring Different Rock Densities
Popcorn Pumice: Exploring Different Rock Densities
Science Project
Popcorn Pumice: Exploring Different Rock Densities
In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.
3rd grade
Science
Science Project
How do Sedimentary Layers Form?
How do Sedimentary Layers Form?
Science Project
How do Sedimentary Layers Form?
In this science fair project, students discover how sedimentary layers form as sediments like mud, silt and sand settle over time.
3rd grade
Science
Science Project
Does Adding Salt to Pasta make it Cook Faster?
Does Adding Salt to Pasta make it Cook Faster?
Science Project
Does Adding Salt to Pasta make it Cook Faster?
Did you ever add salt to pasta? Did it help cook the pasta faster? If not, find out in this science fair project idea.
3rd grade
Science
Science Project
Do Different Types of Oil Mix or “Stack”?
Do Different Types of Oil Mix or “Stack”?
Science Project
Do Different Types of Oil Mix or “Stack”?
Do different types of oil mix or stack? Find out in this science fair project idea!
3rd grade
Science
Science Project
Does Storing Cucumbers and Tomatoes in the Fridge Spoil Its Unique Flavors?
Does Storing Cucumbers and Tomatoes in the Fridge Spoil Its Unique Flavors?
Science Project
Does Storing Cucumbers and Tomatoes in the Fridge Spoil Its Unique Flavors?
Will storing cucumbers and tomatoes in the fridge destroy their unique flavors? Find out in this science fair project idea!
3rd grade
Science
Science Project
Warm, Warmer: How Does Exercise Change Body Temperature?
Warm, Warmer: How Does Exercise Change Body Temperature?
Science Project
Warm, Warmer: How Does Exercise Change Body Temperature?
In this science fair project, we'll use a liquid crystal thermometer to find out whether exercising makes a difference in people's temperature.
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

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.