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Ch.1 Sec2

Ch.1 Sec2. The Study of Earth Science. Sec 2. Earth science is the term for this knowledge about Earth and its place in the universe Earth scientists use several big ideas to guide their work: the structure of the Earth system, Earth’s history, and Earth in the solar system. Sec 2.

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Ch.1 Sec2

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  1. Ch.1 Sec2 The Study of Earth Science

  2. Sec 2 • Earth science is the term for this knowledge about Earth and its place in the universe • Earth scientists use several big ideas to guide their work: the structure of the Earth system, Earth’s history, and Earth in the solar system.

  3. Sec 2 • The structure of the Earth System • Four parts, or spheres of Earth • Lithosphere: earth’s solid rocky outer layer • Hydrosphere: earth’s oceans, lakes, rivers, and ice • Atmosphere: outer most layer; mixture of gases that surrounds the planet • Biosphere: all living things – whether in the air, in the oceans, or on and beneath the land surface

  4. Sec 2 • The Structure of the Earth System • System: is a group of parts that work together as a whole • Energy: is the ability to do work or cause change

  5. Sec 2 • Earth’s History • Constructive forces: shape Earth’s surface by building up mountains and landmasses • Destructive forces: slowly wear away mountains and every other feature on Earth’s surface

  6. Sec 2 • The Branches of Earth Science • Geology: study the forces that have shaped Earth throughout its long history • Oceanography: is the study of Earth’s oceans • Meteorology: are scientists who gather information about conditions in the atmosphere from around the world • Astronomy: focus on the solar system • Environmental Science: study Earth’s environment and resources

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