Earth

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Earth Science





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Earth Science

• Earth science encompasses 5 areas of study
• Astronomy
• Geology
• Oceanography
• Meteorology
• Environmental Science

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Earth Science
Astronomy
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Astronomy

• The study of objects beyond Earths atmosphere

• Astronomers study the universe, which includes
  galaxies, stars, planets, and other bodies they
  have identified.

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Earth Science
Astronomy
Geology
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Geology

• The study of the materials that make up Earth
• The processes that form and change these
  materials
• The history of the planet its life-forms since
  its origin

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Geologists

• Identify rocks
• Study glacial movements
• Interpret clues to Earths
  4.6-billion-year history
• Determine how
  forces change our
  planet

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Earth Science
Astronomy
Geology
Oceanography
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Oceanography

• The study of Earths oceans
• Oceanographers study the creatures that inhabit
  saltwater, measure different physical chemical
  properties of the oceans, observe various
  processes in ocean water.

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Earth Science
Astronomy
Environmental Science
Meteorology
Geology
Oceanography
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Meteorology

• The study of weather-producing forces in the
  atmosphere
• Meteorologists also try to forecast the weather
  learn how changes in weather over time might
  affect the Earths climate.

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Earth Science
Environmental Science
Astronomy
Meteorology
Geology
Oceanography
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Environmental Science

• The study of the interactions of humans and their
  environment
• Environmental scientists study how organisms
  impact the environment positively negatively.
• Topics of study include natural resources,
  pollution, alternative energy sources, impact
  of humans on atmosphere.

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Earths Systems

• Scientists have identified 4 main Earth systems
  that are unique yet interact with each other in
  important ways.
• Biosphere
• Geosphere
• Hydrosphere
• Atmosphere
• Time to make a foldable!

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Earths Systems
Biosphere All organisms on Earth as well as the environments in which they live
Geosphere Actual physical Earth, includes crust, mantle, and core
Hydrosphere Water in Earths oceans, seas, lakes, rivers, glaciers, atmosphere
Atmosphere Gases surrounding Earth, including 78 nitrogen 21 oxygen