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.

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

This science fair project idea explores the relationship between oil and water in terms of density as well as hydrophilic/hydrophobic compounds.

Here's an investigative activity in which your child will discover real-world names and uses for sugar and find out how it is hidden in many different foods.

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