Khan Academy: Carbon as a Building Block of Life

A great review of the structure and function of carbon-based molecules important to life, especially with relevance to humans. The chemistry behind the combination of polymers and the breakdown of bonds is covered. Valuable content...

This article explores exactly what is considered alive but reviewing over the characteristics of life.

Try these five multiple-choice questions about the building blocks of life. The quiz is self-checking, and provides hints to the student if needed.

Discover what you know about the chemical building blocks of life by taking this pre test.

Discover what you know about the chemical building blocks of life by taking this post test.

An explanation of various aspects of the f-block element Nd that includes, location on Periodic table, electron configuration shorthand based on Xe, and the full electron configuration. [5:56]

Introduction to rules for electron configurations of d-block elements. Relative reactivity and energy of 4s and 3d electrons also discussed.

Dicover the science of taxonomy and where humans fit into the tree of life. [12:41]

A system presented to figure out how many civilations with enough radioactivity to be detected within the Milky Way. [13:03]

Learn a new technique for representing organic molecule structure called line or line-angle diagram. This technique was created by Khan Academy founder, Sal Khan. [7:28]