Criminal Minds revolves around an elite team of FBI profilers who analyze the country's most twisted criminal minds, before they strike again.The Behavioral Analysis Unit's most prominent agent is David Rossi (Joe Mantegna), a founding member of the BAU, who returns to help the team solve new cases, while pursuing some unfinished business of his own. Each member brings his or her own area of expertise to the table as they pinpoint predators' motivations and identify their emotional triggers in the attempt to stop them.
Parental guidance: recommended ages 17+

One of the most familiar features of any high-school chemistry lab is the Periodic Table of Elements. Elegant, informative, useful to any student in the lab - the Periodic Table neatly summarizes our scientific knowledge of the chemical elements from hydrogen to uranium and beyond - atomic number, atomic weight, isotopes, and more. But how did scientists discover all of these features of the elements? How did the Periodic Table come to be? And, even more basically, how did the concept of the chemical element come to dominate how scientists understand chemistry?

This book shows readers the answers to these and other questions regarding the scientific understanding of matter. The Chemical Element, a volume in the Greenwood Guides to Great Ideas in Science, traces the history of this tremendously powerful concept from the ancient philosophers to the present day.

You know that you need oxygen to breathe, that neon can glow and chrome shines?
But did you know that your cell phone contains arsenic, your spectacles contain rhodium and that the tin pest is not a disease?
And can you name just three researchers whom we have to thank for all these results?

Here, Professor Quadbeck-Seeger, a long-serving member of the board at BASF, goes in search of these and other questions.
Based on the periodic table, the key reference source for any natural scientist, he explains the criteria that define an element's position in the table and are responsible for its particular characteristics. In a clear and concise manner, he describes for each element the story behind its discovery, its physical and chemical properties as well as its role in our everyday lives.
Enriched by a wealth of interesting details, this beautifully designed book in full color represents not only varied reading, but also a treasure trove of surprising facts.