1. Why Earth Science?

2. What is Earth Science?

3. Earth Science is the study of the Earth and the universe around it.
Through the study of Earth Science, we develop an understanding of the ways in which our planet is changing and the potential consequences of these changes

4. The Sciences of Earth Science
Astronomy:
the study of the universe and Earth’s place within it

5. Geology The study of the surface and the interior of the Earth

6. Meteorology The study of the atmosphere and how it effects man-kind

7. Oceanography
The study of the composition of seawater , water movement, coastlines, sea floor topography and ocean life

8. The Systems of the Earth
There are five major systems that create the changes for Earth we live on:
Atmosphere
Hydrosphere
Geosphere
Cyrosphere
Biosphere

9. Atmosphere
The air around the Earth

10. Hydrosphere
The water in the air, on the Earth’s surface and in the Earth’s surface

11. Geosphere
The Earth’ surface

12. Cryosphere The frozen water of the Earth

13. Biosphere
The life forms of the Earth

14. Atmosphere
Geosphere
Biosphere
Cryosphere
Hydrosphere

15. Atmosphere
It is the envelope of gases above the Earth’s surface. It is layered with most of the gases at the surface of the Earth.
It contains life sustaining gas of oxygen.
It is composed of nitrogen(78%), oxygen (21%), carbon dioxide, water vapor and other gases
A cycle of atmosphere occurs as the gases leave the atmosphere to become part of life and are later returned to the atmosphere (Nitrogen Cycle, Carbon Cycle)

16. Hydrosphere It is the major system of liquid water on our planet
Water is contained in oceans, lakes, streams, ground water, in the atmosphere, and in life.
More than 70% of the Earth’s surface is covered in water.
A cycle occurs with water evaporates, condenses, precipitates, falls to the earth’s surface and then evaporates again.

17. Geosphere
The geosphere is composed of the crust, the mantle and the core.
The crust is the upper most layer of the earth and is mostly composed of solidified rock and minerals.
The mantle is composed of molten rock
The core is made up of two parts: the outer core and the inner core. The outer core is liquid iron and the inner core is solid iron.
A cycle occurs as new rock is created from the molten rock and returns back to the molten form

18. Cryosphere Earth’s frozen water that is included in: Glaciers
Permafrost (frozen groundwater)
Ice caps
A cycle occurs as ice melts and water recreates ice again.

19. Biosphere It is composed of life – forms
A cycle occurs as life begins, grows, ends and then begins again.
Relationships between each of the Earth’s systems impact the biosphere

20. How do each of these impact each other?
Atmosphere & Hydrosphere
Atmosphere & Cryosphere
Atmosphere & Geosphere
Atmosphere & Biosphere
Hydrosphere & Geosphere
Hydrosphere & Cryosphere
Hydrosphere & Biosphere
Geosphere & Cryosphere
Geosphere & Biosphere
Cryosphere & Biosphere

21. Closed and Open Systems
Closed System:
Matter stays in the system.
Energy moves from one system to another
Open System:
Matter moves from one system to another.

22. How is Earth a closed system?

23. Assessment
Write a paragraph explaining what we learn about our Earth from studying Earth Science?
Include: A topic sentence, 5 sentences stating what we learn, a closing sentence, proper grammatical conventions.