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INTRODUCTION TO SCI7B: EARTH AND SPACE SCIENCEFields/Disciplines which deal with Earth and Space Sciences Earth’s Major Spheres
GEOLOGY OCEANOLOGY METEOROLOGY ASTRONOMY
Fields of Science that collectively seek to understand the Earth and its neighbors in space
GEOLOGYEtymology : Geo - Earth logos - study of
GEOLOGY
✓Examines the materials composing the Earth and seeks to understand the many processes that operate beneath and upon its surface !
✓Seeks to understand the history of Earth and the development of the planet through its 4.5 billion-year history
OCEANOLOGYMarine Science - Study of the oceans
OCEANOLOGY
✓Studies the composition and movements of seawater as well as coastal processes, seafloor topography, and marine life
METEOROLOGYScience of the Atmosphere
METEOROLOGY
Studies the processes that produce weather and climate
ASTRONOMYAstronomos - star arranging
ASTRONOMY
!✓Studies the physical laws
governing the universe !
✓Understand the explanations/theories of the Earth’s origin
GEOSPHERE HYDROSPHERE ATMOSPHERE BIOSPHERE
The Major Spheres of the Earth
GEOSPHERE
!✓extends from the surface to
the center (core) of the planet (6,400km)
HYDROSPHERE
✓dynamic mass of liquid blanketing nearly 71% of Earth’s surface to an average depth of about 3,800m.
ATMOSPHERE
✓life-giving gaseous envelope just above the ground which also protects us from the Sun’s ultraviolet radiation
BIOSPHERE
✓includes all life on Earth, their interaction and distribution, and their environment