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 project demonstrates the correspondence between the volume of water displaced by a submerged object and the volume of the object displacing it.

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 science fair project, young children discover what happens when two fluids that have different densities get together.

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

Teach your child about using pumps to move water in this simple and educational preschool science activity!

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

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.

How do mirrors work? What is light, and how does it travel? Explore light and reflection with your preschooler with these simple hands-on experiments.