Introduction to Earth Science

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Introduction to Earth Science

• Or, How The Earth Works

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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 its 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

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Branches of Earth Science

• Oceanography
• The study of the Earths oceans
• Oceans cover nearly 75 of the planet
• Astronomy
• The study of objects beyond Earths atmosphere
• Planetary Geology
• Environmental Science
• The study of the interactions of organisms and
  their surroundings

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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)

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The Solid Earth
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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 Earths life forms require interaction
  with at least one of the other systems to survive

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Learning Targets

• Compare the areas of study within Earth Science
• Identify and define Earths systems.