Use reusable, recyclable materials--along with a dose of imagination--to build a castle with first grade geometrical forms.

Bring the magic and mystery of the night sky to the light of day with this fun constellation art project!

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

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

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

Take this "paper plate snack test" with your child for a hands-on lesson in making healthier choices to teach your child about what's in his food.

Here's a science activity that lets a first grader use an empty dish detergent bottle to create his own fountain as he explores air pressure.

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