Chameleon Metals (IMAGE) Iowa State University Caption This illustration shows how a particle of 'chameleon metal' reacts to higher and higher temperatures by sequentially changing its surface structure. Credit Andrew Martin/Iowa State University Usage Restrictions None License Licensed 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.