Polystyren (IMAGE) Virginia Tech Caption Researchers sort through various objects made from polystyrene, a type of plastic that is rarely recycled. Photo by Reilly Henson for Virginia Tech. Credit Virginia Tech Usage Restrictions Credit Virginia Tech License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.