The rotation of Earth on its axis determines day and night. Teachers, scientists, and technicians who study Earth are employed by businesses, industries, government agencies, public and private institutions, and as independent contractors. Careers in the sciences that study Earth may include sample and data collection in the field and analyses and experiments in the laboratory. Scientists from many cultures throughout the world cooperate and collaborate using oral, written, and electronic means of communication. Some scientists and technicians who study Earth use their specialized understanding to locate resources or predict changes in Earth systems.
Many people pursue avocations related to planet Earth processes and materials.