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In this video Paul Andersen explains how scientific theories are created and modified over time. He starts by discussing the theory of natural selection as a model for the creation and modification of theories. He gives examples of theories within each of the four big ideas. He gives a number of example questions that cover this science practice. He ends be describing how miasma theory was eventually replaced by the germ theory through systematic studies.
  • Last Modified: Wednesday 24 February 2021, 18:19:05.