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What is Earth Science?

Explore the various subdivisions of Earth science and learn about the formation of the solar system through the Nebular Hypothesis. This chapter provides an introduction to geology, oceanography, meteorology, astronomy, and their connection to understanding Earth and its neighbors in space.

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What is Earth Science?

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Presentation Transcript

  1. What is Earth Science? Chapter 1, Section 1

  2. Overview of Earth Science • Earth science is the name for the group of sciences that deals with Earth and its neighbors in space • Earth science includes many subdivisions of geology (both physical and historical) such as geochemistry, geophysics, geobiology and paleontology, as well as oceanography, meteorology, and astronomy • Geology – the science that examines Earth, its form and composition, and the changes it has undergone and is undergoing • Oceanography – the scientific study of the oceans and oceanic phenomenon • Meteorology – the scientific study of the atmosphere and atmospheric phenomenon; the study of weather and climate • Astronomy – the scientific study of the universe; it includes the observation and interpretation of celestial bodies and phenomenon

  3. Concept Check • What are the two main areas of geology? • Physical Geology and Historical Geology

  4. Formation of Earth • Earth is one of eight planets and many dwarf planets that revolve around the sun • The nebular hypothesis suggests that the bodies of our solar system evolved from an enormous rotating cloud called the solar nebula • It was made up mostly of hydrogen and helium, with a small percentage of heavier elements • The lighter elements were taken away by the heavier outer planets (Jupiter, Saturn, Uranus, and Neptune), leaving the heavier elements in the inner planets (Mercury, Venus, Earth, Mars) • Shortly after Earth formed, heat caused the interior to partially melt, allowing the heavier elements to sink towards the middle, and the lighter elements to float towards the surface, creating layers

  5. Concept Check • Why does Earth have layers? • Denser elements sank to Earth’s center and less dense elements floated to the surface

  6. ASSIGNMENT: • Create a COMIC POSTER: (15 pts) Use page 4 of Text • 6 Frames. • 6 captions. • 6 COLOR drawings that illustrate each phase of Nebular Hypothesis • DUE: TURN-IN End of Period. • 2.5 pts = Captions • 10 pts = Illustrations…use color!!! • 2.5 pts = Effort

  7. Formation of the Solar System

  8. Assignment • Read Chapter 1, Section 1 (pg. 2-5) • Do Section 1.1 Assessment #1-7 & Connecting Concepts (pg. 5)

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