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

This science fair project idea investigates which objects float and sink in honey, water, and oil.

Help your child explore chromatography, which is the process of separating colors or pigments, and create a neat art project in the process!

This is a quick, easy science fair project that conveys the idea of density to upper elementary students.

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 recipe makes bubbles that not only blow up nice and big, but do tricks and experiments! How do you do it? It's not a secret, it's science!

Set your young chemist up for an afternoon of science-fueled magic with a deceptively simple activity starring baking soda and vinegar!

Is it solid or liquid? Create oobleck and witness the amazingly weird oscillation between the two!

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.

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.

In this Halloween-themed activity, young learners will find out what happens when they mix two household items together to create a surprising chemical reaction.

Try this experiment to give your curious kid a more "solid" understanding of how temperature affects the states of matter.

Chemistry is a blast with this backyard bomb made from a sandwich bag. All you need are ingredients from the pantry to create a satisfying, and safe, explosion.

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

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.