Hottest Cities in United States. Two major cities contend for the title of hottest city in the United States. The city that comes out on top depends on how you measure heat. Phoenix Arizona excels at extreme hot weather. It consistently ranks number one for the most days a year when temperatures rise above 89 Â°F or 99 Â°F. Miami challenges Phoenix for top spot on hottest year-round temperatures.
would a chemist most likely study: a leaf changing color in the fall. OR. a leaf floating on water. Follow.
Chemistry is considered a physical science and is closely related to physics. Sometimes chemistry is called the central science because it is an important part of other major sciences such as biology, Earth science, and physics. Scientists who specialize in chemistry are called chemists. Chemistry Subjects.