Describe the general steps involved in the scientific method
The scientific method starts with a question, or a desire to understand something that has been observed or measured. A working hypothesis is formed to tentatively explain the observation. The hypothesis is tested with controlled experiments and further observations to be either verified or disproved. A hypothesis that is consistently supported by observation or experiment is advanced to the status of theory, a statement that explains the observations. Theories can evolve into larger constructs, known as laws, which summarize the observations.
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Which of the following is NOT a criterion for inclusion as a UNESCO World Heritage site?
A) exhibits high potential to be commercialized B) represents a masterpiece of human creative genius C) represents a unique or exceptional living civilization D) represents a unique or exceptional disappeared civilization E) illustrates a significant stage in human history
A 200-m length of copper wire is heated and gains 0.18 m in length. If the wire were instead 100-m long, the length gained would be
A. 0.09 m. B. also 0.18 m. C. 0.36 m. D. more than 0.36 m.
Recent worldwide sea level rise cannot be attributed to which of the following?
A) Geological uplifting of ocean basins B) Melting of Antarctic and Greenland ice sheets C) Melting of land-based glaciers and mountain ice caps D) Thermal expansion of deep-ocean waters E) Thermal expansion of surface ocean waters
If you want to evaluate arguments and evidence without the benefit of the scientific method, what approach would you use?
A. Use personal beliefs as indicators of truth B. Be skeptical C. Carefully consider the source of all information D. Employ logical reasoning