Did you know that corrugated paperboard is half of all paper recycled in the United States?
Corrugated boxes are made of corrugated paperboard. It is different from hard paper known as cardboard. If you take a closer look at the edge of a corrugated paperboard, you will see a row of air columns. This air acts like a cushion, while the columns make the paper tough. Some corrugated boards can have up to one, two, or even three layers of flutes and liners, depending on how sturdy the boxes need to be The wavy paper inside the corrugated board is called corrugating medium. The flat sheets on the outside are called liners.
The children created these color collages using recycled corrugated paperboard.