Final answer:
Scientists use the scientific method as a procedure to investigate the natural world, which involves steps like observation and experimentation.
Step-by-step explanation:
Scientists develop an understanding of the natural world by following a set of guidelines known as the scientific method. This method involves systematic observation, measurement, experimentation, formulation, testing, and modification of hypotheses. Scientists use the scientific method to plan and carry out investigations which enables them to answer questions and test hypotheses through evidence and logical reasoning.
The scientific laws are consistent findings that describe what always happens under certain conditions in nature. These laws are intrinsic to the universe, which means they were not created by humans and cannot be changed by them. The process of discovering these laws is inherently creative, involving elements of mystery, imagination, struggle, and triumph.
When scientists observe a phenomenon, such as the change of rain to snow when the air temperature drops, this could pertain to the first law of thermodynamics, which is about the conservation of energy. However, the actual law demonstrated would depend on the specific details of the phenomenon being observed.