2nd and 3rd Grade Science Projects Activities

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

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

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.

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

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.

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

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

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.

This science fair project idea investigates how color affects temperature.

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

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!

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!

Kids will learn some cool stuff about chemical reactions by determining what happens when you mix different concentrations of hydrogen peroxide and yeast.

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.

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

In this free science fair project, learn how to separate salt from water using heat. A great science project for elementary school kids.

Science fair project which determines if plants really do need water to grow, or whether they just need to be kept wet.

This science fair project idea investigates how magnetism can defy the force of gravity.

This is a quick, easy science fair project that conveys the idea of density to preschool and early elementary children.

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

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

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

Can a toy car determine the strength of a magnet? In this cool magnet science fair project, young scientists will learn how to measure the strength of a magnet.

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

In this science fair project, kids will be able to see where germs reside on their hands while gaining insight into the benefits of thorough hand washing.

How does smell affect taste? Ready your taste buds--in this project, you'll gather some test subjects and do a taste test to see how much smell affects taste.

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

Find out whether a longer airplane will fly farther or a wider paper airplane.

This project determines whether Styrofoam, paper, or plastic cups are best for preventing ice from melting.

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