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
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. Formation of the Solar System

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

7. Assignment Read Chapter 1, Section 1 (pg. 2-5)
Do Chapter 1 Assessment #1-36 (pg )

8. ASSIGNMENT: 6 Frames. 6 captions.
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