How do series and parallel circuits work, and which produces the brightest light in a light bulb? Construct both in this project and find out!

The objective of this science fair project idea is to determine if sound travels best through the air, water or a solid.

Get your hands on a concoction that breaks the rules about what's a solid and what's a liquid.

This science fair project idea produces varying pitches of sound.

This experiment that explores water and air pressure will amaze your fifth grader as it appears that a single card is holding water in an upside-down glass.