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

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

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.

Why are some pennies shiny and others dark and dull? Find out with this cleaning copper coins experiment, which transforms dark pennies to bright ones.

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.

Show your child how to concoct a simple duo of household ingredients that changes color as acids and bases are added!

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

How powerful is the reaction between baking soda and vinegar? Find out here!

The goal of this science fair project is to assess the acidity levels of common food and household products using pH test strips.

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

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

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