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!

Magic, science, or household cleanser? Let your second grader decide with this practical, nontoxic chemistry experiment with acids and bases.

Determine the relationship between the speed of a sound and the temperature of the air it passes through.

In this fun science fair project idea learn the difference between additive and subtractive color and why they are handled differently.

In this fun science fair project idea learn about universal solvents and solutes and find out the solubility of several common liquid substances.

Here's a fun math and science activity: help your child explore four different kinds of measurement, using their hand and a few simple household tools.

Here's a fun at-home activity that will help your child strengthen math skills using high and low temperature data, and become a master temperature tracker!

This science exploration lets your first grader see how eggs can provide a perfect environment for a living, growing creature.

Find a mathematical relationship between the intensity of a sound wave and distance from the sound source. Use a pedometer and a sound level meter.

This project determines what percentage of test subjects react adversely to the sound of fingernails on a chalkboard and explores their physiological responses.

The purpose of this science fair project is to build a basic radio.

Explore concepts in current and coltage with these Van de Graaff generator experiments.

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.

This Mother's Day, mix in some fifth grade science learning to create this fabulous fudge!

This science fair project idea experiments with spinning color wheels and optical illusions.

Look for a correlation between temperature and the intensity of cricket chirping. Measure ambient temperature and sound intensity in decibels.

In this cool science fair project, kids apply basic algebra to learn how to make a PVC pipe instrument while exploring concepts like frequency and resonance.