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Earth Science
Earth ScienceEarth Science
• Earth science encompasses 5 areas of study:– Astronomy
– Geology
– Oceanography
– Meteorology
– Environmental Science
AstronomyEarth
Science
AstronomyAstronomy
• The study of objects beyond Earth’s atmosphere
Astronomers study the universe, which includes galaxies, stars, planets, and other bodies they have identified.
Earth ScienceAstronomy
Geology
GeologyGeology
• 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
GeologistsGeologists• Identify rocks
• Study glacial movements
• Interpret clues to Earth’s 4.6-billion-year history
• Determine how forces change our planet
Astronomy
Geology
Oceanography
Earth Science
OceanographyOceanography
• The study of Earth’s oceans
• Oceanographers study the creatures that inhabit saltwater, measure different physical & chemical properties of the oceans, & observe various processes in ocean water.
Astronomy
Geology
Oceanography
Meteorology
EnvironmentalScience
Earth Science
MeteorologyMeteorology• 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 Earth’s climate.
Astronomy
Geology
Oceanography
Meteorology
EnvironmentalScience
Earth Science
Environmental ScienceEnvironmental 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.
Earth’s SystemsEarth’s 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!
Earth’s SystemsEarth’s 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 Earth’s oceans, seas, lakes, rivers, glaciers, & atmosphere
Atmosphere Gases surrounding Earth, including 78% nitrogen & 21% oxygen
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