Why are some pennies shiny and others dark and dull? Find out with this cleaning copper coins experiment, which transforms dark pennies to bright ones.

4th graders construct an ocean food web to learn about consumers and trophic levels, food webs, and food chains in this cool ecology science fair project.

In this science project, the center of gravity is explored.

Teach your fifth grader about the wonders of wind by making and observing this winter wind chime.

Excite your fourth grader by recreating ancient Viking myths. This miniature longboat will explore the principle of water molecules expanding when heated.

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

This easy Halloween-themed science experiment for first-graders is perfect for chilly October afternoons or great as a Halloween party activity.

This science fair project idea develops an understanding through experimentation of which shapes are the most structurally strong.

Do this experiment to help your first grader understand how salt can be removed from salt water. All it takes are a few household materials.

Observe with your third grader what happens when food starts to decompose, and boost science skills simultaneously with this experiment!

Help your fifth grader trace your family's roots and interview all the living mothers to create a makeshift, 3-D family tree!