2: Measuring the Body
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- 2.2: The Scientific Process
- The scientific method alone is not enough to make real progress in accumulation of scientific knowledge, but using it as the hub of a cyclic process has led to the massive rate of scientific and technological advancement we have seen over the last century. Science can be thought of as a continuous process guided by with the scientific method.
- 2.3: Scientific Models
- A model is a representation of something that is often too difficult (or impossible) to observe or display directly. Although a model is justified by experimental tests, it is only accurate in describing certain aspects of a physical system.