Introduce your second grader to the crazy world of static electricity with just a balloon and a sheet of paper.

Air invisible; it doesn't make sounds; you can't pick it up and throw it. So how do we know it exists? Help your second grade scientist figure it out.

Kids construct a single fixed pulley system to learn how pulleys can make work easier in this cool physics and engineering science fair project idea.

Children will learn all about cause and effect as they experiment with potion-making in this Halloween themed activity.

Combine your child's natural curiosity with his developing classification and writing skills by helping him create a backyard field guide.

This science experiment tests why guacamole goes brown and if leaving the pit in will stop guacamole from turning brown.

Learn about the layers of the Earth and make a model! Create a earth layer book, cake, or clay diagram.