As any viewer of NOVA’s "Beyond the Elements" series can tell, host David Pogue had a blast exploring the wonderful world of chemistry and bringing it to millions of PBS viewers. But why should David ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

The reaction generates amino acids and nucleic acids, the building blocks of proteins and DNA. Four billion years ago, the Earth looked very different than it does today, devoid of life and covered by ...