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

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!

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

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

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

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

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

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

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.

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

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!

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.

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.

Help your child experiment with the combination of acid and baking soda by making these homemade bath bombs!

Your child will do a fun science experiment using soap and pepper flakes to help understand the concepts of water molecules and the surface tension of water.

Want to make Halloween truly eerie? Science to the rescue! These ghouly hands come alive with a little help from simple chemistry.

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

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.