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

In this sound experiment children listen for differences as they tap on a bag of air, a bag of water, and a wooden block held up to their ears.

In this 3rd grade science activity, you'll experiment with the little-known fourth state of matter: polymers! Mix borax with white glue and watch what happens.

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!

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