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!

In this fun science fair project idea, kids will experiment with various methods in order to discover the fastest way to cool a soda.

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.

Kids explore how a single movable pulley can confer a mechanical advantage over a fixed pulley in this cool engineering science fair project for 2nd grade.

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

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

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!

In this activity your child will create their very own marble maze!

In this simple science project, learn about what causes dew and what affects dew formation with a drinking glass, ice, and a soda bottle.

What's the relationship between temperature, air humidity and static electricity? Kids will find out with this free static electricity science fair project.

Discover how and which salt melts ice the quickest.

Learn how to make an anemometer with step-by-step instructions in this cool science fair project idea for 4th grade.

Students will investigate the thermal conductivity of metals by learning how to measure thermal conductivity with this fun and easy science fair project idea.