ESS2.C: The Roles of Water in Earth’s Surface Processes


In this video Paul Andersen explains the vital role that water plays in the processes on the Earth's surface.  Water has several unique properties including high heat capacity, transparency, polarity and the ability to change the chemical behavior of the mantle.  The Earth is largely a water planet but most of the water is found in the oceans or locked in ice.  Water is a powerful erosive force on the planet.  A K-12 teaching progression is also included.

CCC6: Structure and Function


Paul Andersen explains how the structure of objects are related to their function and vice versa.  He begins with a quick quiz on bicycle construction and ends with a progression of teaching for students grades K-12.  He also explains how the scale of an object will determine the function studied.

SEP3: Planning and Carrying Out Investigations


Paul Andersen explains how investigations are used by scientists to answer questions and by engineers to test designs.  He delineates be investigative and observational science.  He demonstrates the formation of a good question the design of an effective investigation.