In this video Paul Andersen explains the topic of biogeology. Life only exists where the geosphere, hydrosphere and atmosphere allow life to exist. The interactions between the organisms on the planet and the planet itself is known as biogeology. As the landforms on the planet change the lifeforms adapt through evolution. The biosphere can also impact the Earth itself. A K-12 teaching progression is also included.
In this video Paul Andersen describes the four major spheres on planet Earth. The geosphere makes up the mass of the planet and includes the major landforms. The hydrosphere is all of the water and the atmosphere is all of the gases. The biosphere exists where the others spheres interface. A K-12 teaching progression is also included.
In this video Paul Andersen explains cause and effect its importance in science and engineering. He starts by addressing the chain of interactions that must be present to show cause and effect. He addresses the assumptions of universality and scale in determining cause and effect. He finished the video with a progression of instruction from K-12.
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.