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 classic children's game demonstrates how sound travels through air vs. through a solid.

Your kid can learn about the process of making frozen yogurt and enjoy a homemade, flavorful dessert. Experiment with this fun, chilly food!

This classic children's game-connecting two cups with a string-demonstrates sound's ability to travel through air vs through a solid.

Play this flashlight game with your child to teach him about objects that are transparent, translucent, and opaque.