Here's a homemade bulletin board project to help your fourth grader's school year start off right.

In this activity, learners will discover how to make a basic water filtration system using common materials found around the house or outside.

Do earthworms like moisture or darkness? Find out as we explore the relationship between earthworms and light.

Kids learn how to manipulate additive and subtractive colors to send secret messages with red colored filters in this cool science fair project idea.

How does distance affect the spreading of light? Kids see diffraction and the inverse square law of light in action with this great science fair project idea.

What is topography? Kids find out by learning to make and read a topographic map in this awesome science fair project idea.

This science fair project focuses on the use of a conductivity device that will determine if a substance dissolved in water can or cannot conduct electricity.

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.