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2nd and 3rd Grade Science Projects Resources

Use pepper and soap to discover some fun facts about the properties of water.

Pepper and Soap Experiment

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.

Bouncing Ball Physics: What is Elasticity?

Children have a naturally inquisitive mind. Foster their curiosity with a walk through an autumn field or park to answer age-old &ldquo;why&rdquo; questions. As you walk with your child, you can encourage them to ask questions.

Inspire Simple STEAM Exploration

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.

The Limewater Carbon Dioxide Test

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!

Third-Class Levers in the Human Body

This science fair project idea investigates if webbed feet help a duck (and others) swim.

Duck Feet

This science fair project idea explores whether talking to a plant will help it grow.

Talking to Plants

This science fair project idea  determines what household items are good conductors of electricity.

Conductor or Insulator

Certain fruits can change gelatinâs ability to set. In this experiment, kids will discover what happens when gelatin meets pineapple enzyme.

Pineapple Enzyme

In this free science fair project idea, we learn about surface tension and how it can support mass—in this case, a floating paper clip.

Floating Paper Clip

Is it magic? No...it's the amazing, gravity-defying capillary action experiment! Kids will love this dramatic and enlightening science fair project.

Capillary Action Experiment

Learn how to make a food pyramid with animals in a a coniferous forest ecosystem around your home.

Forest Food Pyramid Project

Tired of gum with flavor that lasts for just a couple of minute? Put gum to the test with this chewy science experiment!

Which Gum has the Longest Lasting Flavor?

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!

Animal Vision: Ocelli, Compound Eyes, and Camera Eyes

Start your toy engines -- this is going to be a fast and friction-filled race!

Car Friction: The Science of Going Fast

This science fair project idea investigates emulsifiers that allow oil and vinegar to mix.

Like Oil And Vinegar

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

How to use Colored Filters to Send Secret Messages

In this project, you'll build a model of the earth, complete with all seven continents and four major oceans.

Create Your Own Earth Model

For this science fair project, kids will learn how to make a lemon battery. They can conduct this classic experiment using readily available materials.

How to Make a Lemon Battery

In this science project, learn about water transport in plants and make a beautiful dyed floral arrangement with cohesion, adhesion, and xylem tubes!

Water Transport in Plants

This classic children&#39;s game demonstrates how sound travels through air vs. through a solid.

How Sound Travels Through Air and Solids

This science fair project teaches about mold. Students will test different foods to see which grow mold the fastest.

Which Food Will Mold the Fastest?

Plants and light seem to be good buddies, but how far does the friendship really go?

Growing in the Dark: Plants and Light

The objective of this science fair project is to observe the differences in heat absorption for darker colors vs. lighter colors.

Color and Heat Absorption

This science fair project idea determines what household items are good conductors of electricity.

Conductor or Insulator?

In this air pressure science experiment with a balloon and a jar, children will use heat to create a partial vacuum and suck a balloon into a jar.

Air Pressure Science Experiment: Balloon and a Jar

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Earthworms and Light: Do Worms Prefer Darkness?

The goal of this evaporation experiment is to learn about how different external conditions affect drying time.

Rate of Evaporation

This project examines whether people's taste perception is influenced by what they see.

Taste Perception

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.

How Does a Compass Work?

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