Your kid will be captivated as she watches liquids change color before her very eyes during this fun science project that introduces some chemistry basics.

How do we know that air exists when we can't see it, taste it, or touch it? Here's a classic experiment that will teach your kid some basics of aerodynamics!

Help your first grader explore the world of scientific measurement by "weighing" fruit with a "water scale"!

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

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.

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

How does a kazoo, the strings of a guitar, or the speaker of a radio make sound? The purpose of this science fair project is to show how vibration makes sound.

Blanket forts are a kid classic! Let your child create a âfortress of solitudeâ on his own for reading, telling scary stories or for cozy cocooning.

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

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

Teach your first grade scientist the difference between liquids and solids using maple syrup.

Put your second grade scientist to work this Fourth of July with our colorful "liquid fireworks" project!

The next time you've got a restless second grade earth scientist on your hands, use this experiment to demonstrate crystals and make a tasty treat, too!