Eratosthenes, a scientist of ancient Greece, made the first accurate measurement of the Earth's diameter. The ancient Greek philosophers were amazed by volcanoes and earthquakes. They made many attempts to explain them, but most of these attempts to explain these phenomena sound very strange to most people today. For example, Aristotle, speculated that earthquakes resulted from winds within the Earth caused by the Earth's own heat and heat from the sun. Volcanoes, he thought, marked the points at which these winds finally escaped from inside the Earth into the atmosphere.
Earth science is very important in the world today.
Earth science allows us to locate metal and mineral deposits. Earth scientists study fossils. This helps provide information about evolution and the development of the earth. Earth science helps in locating fossil fuels, such as oil. These fuels compose a major part of the world economy.