Will the shape of an ice cube impact how fast the ice melts?

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.

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.

Students pit the heat capacity of water against the heat capacity of oil while looking at the effects of dipole rotation in this cool science fair project idea.

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

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.

This project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

In this fun activity, your child will create their very own solar oven to bake s'mores!

In this cool catalase and hydrogen peroxide experiment, kids put a potato in a jar of hydrogen peroxide to see how catalase acts as an enzyme.

In this science fair project, kids start a chemical reaction that will make a balloon inflate itself!

This science fair project idea experiments with spinning color wheels and optical illusions.

In this design challenge, students will be tasked with creating a bouncy ball polymer!

Check out this fun science fair project to make a vinegar and baking soda balloon and demonstrate how gas is created as a result of the chemical reaction.

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

In this exciting design challenge, your child will use design thinking skills to create a mixture that can inflate a balloon.

Challenge your learner to design and build a city of their own in this creative engineering activity.

Science fair project in which you will examine how crystals are formed by creating your own crystal using charcoal briquettes, salt, and ammonia.

In this science and engineering activity, children will explore types of tunnels and their purposes and then design and build a tunnel of their own.

In this outdoor science activity you'll find tips on how to create a nature journal by choosing a native plant or animal and tracking that species.

In this design challenge, your child will create a parachute for a small toy using typical household items.

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

Discover how and which salt melts ice the quickest.

What heats up fasterâwater or soil? 5th grade students test the specific heat of water against the specific heat of sand in this great science fair project.

In this challenge, students are tasked with creating a model roller coaster that a marble can travel through.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

This science fair project idea measures out the sugar of various foods and find out whether people can correctly determine how much sugar is in common foods.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

This science fair project idea identifies trees using a dichotomous key.

Kids will love making sugar crystals in this sugar crystal science fair project which teaches important chemistry concepts like saturation and solubility.

Will potatoes spud or sprout faster in dry, dark, or cold conditions? Find out in this science fair project idea!