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

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

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.

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.

Teach your first grade scientist the difference between liquids and solids using maple syrup.

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

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

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

First grade science often covers solids, liquids, and gases. This silly science explores serious facts about the difference between all three.

Here's a fun science experiment that's refreshingly tasty too! Turn regular water into a tasty treat perfect for consuming on a hot day.

Put a twist on traditional oil painting with this fun science activity that you and your first grader can do together.

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

Think you can blow up a balloon without using your mouth? This isn't just a cool trick, it's also a great way to introduce chemistry and biology concepts.

It's easier than you think to make homemade play dough -- just a few pantry staples makes a natural version of the toy that kids have loved for generations.

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

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.