This science fair project explains the process of how the lungs expand and contract with the help of the diaphragm.

Make sourdough bread...and learn some colonial history and modern science in the process!

This activity will introduce your child to the four different components of blood and give him a fun way to visualize its properties.

What causes the seasons to change? Kids find out by modeling the earth's tilt using a globe, flashlight and graph paper in this cool science fair project idea.

This science activity will help your student explore the changes that occur to transform an egg from raw to soft to hard-boiled.

Create a brush pile to help wintering wildlife stay warm and cozy through the winter.

Learn how to tell time by the sun with this cool science fair project idea that tracks how the accuracy of a sundial changes over time.

Here's an interesting activity that will enable your child to make his own magnifier out of a drop of water

Nature is the greatest teacher, and you can help facilitate the lesson! Here's how to create a supply backpack to get your kid ready for science action!

Learn about where colors come from and how light absorption works in this fun experiment! All you need is a flashlight, construction paper, and cellophane!

In this science fair project, learn how to make gears and find out why they transmit torques in predictable ways.

This science fair project idea explores plant growth from a bulb, root, and a stem and investigates asexual plant reproduction.

What is the best stain remover for clothes? In this fun and easy science fair project idea, students will identify the best method for laundry stain removal.

Throughout history, people have used song as a teaching and memory tool. This project explores whether song improves a person's ability to retain information.

Grow a garden with an environmentally-friendly twist by using plant scraps that usually get thrown away.

How sensitive is your skin? Here's a fourth grade science experiment that lets your child figure it out.

Here's a great activity that uses corks and toothpicks to create a fleet of floating boats. Which design makes for the most seaworthy vessel?

In this project students experiment with making music using only glasses of water.

Gather some friends for a bubbly soda taste test do determine calories' role in your favorite drinks.

In this popcorn experiment, students can explore how two things made out of the same material can have very different appearances and densities.

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