Evolution, Natural Selection and Speciation part of Conceptual Models:Conceptual Models Examples
In this out of class tutorial, students explore several examples of natural selection and speciation.

Translation simulation part of Conceptual Models:Conceptual Models Examples
This module introduces students to the basics behind translation of a messenger RNA sequence into protein. In addition to text and movies, there are interactive shockwave animations that allow students to move ribosomes and tRNAs to perform translation.

Blue Skies & Sunsets part of Conceptual Models:Conceptual Models Examples
This conceptual model explains why skies are blue and sunsets are red.