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Introduction to Earth Science

Dive into the branches of Earth Science, from Geology to Astronomy, studying the materials, processes, and history shaping our planet. Explore the Earth's systems - Geosphere, Atmosphere, Hydrosphere, and Biosphere. Gain insights into the interactions driving Earth's diverse life forms.

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Introduction to Earth Science

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  1. Introduction to Earth Science Or, How The Earth Works

  2. Branches of Earth Science • Geology • The study of the materials that make up the Earth • The processes that form and change these materials • The history of the planet and it’s life forms • Solid Earth Much Larger than Other Parts • Meteorology – Climatology • The study of the forces and processes that cause the atmosphere to change and produce weather

  3. Branches of Earth Science • Oceanography • The study of the Earth’s oceans • Oceans cover nearly 75% of the planet • Astronomy • The study of objects beyond Earth’s atmosphere • Planetary Geology • Environmental Science • The study of the interactions of organisms and their surroundings

  4. The Earth Systems • Geosphere • Area from surface down to center of planet • Three parts: crust, mantle, and core • Two kinds of crust: continental and oceanic • Mantle is liquid and ranges from 100oC to 4000oC • Atmosphere • Blanket of gases that surrounds planet • 78% Nitrogen (N); 21% Oxygen (O); 1% (water vapor, carbon dioxide, argon and other gases)

  5. The Solid Earth

  6. The Earth Systems • Hydrosphere • All water on Earth • 97% is salt water • 3% is freshwater • Biosphere • All organisms on Earth and the places they live • All of Earth’s life forms require interaction with at least one of the other systems to survive

  7. Learning Targets • Compare the areas of study within Earth Science • Identify and define Earth’s systems.

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