Curated OER
What's Below the Earth's Surface?
Students identify the geological layers of the Earth. They graphically depict each layer's characteristics. Students label and develop a color key for their exhibit. They create a down-to-Earth 3-D display with Erasable Markers.
Other
Principia Cybernetica Web: Punctuated Equilibrium
Starts with a definition of Punctuated Equilibrium, followed by an explanation of this "Observation," and how it fits with other evolutionary theory.