1. Table of Contents: Title Page: Earth Science
Table of Contents: Title Page: Earth Science! Page #: 1 Title: 5 Branches of Earth Science Page #:2 Date: 09/04/2012 Title: 5 Branches Discussion Sheet Page #: 5 Date: 09/04/2012

2. Objective:
Students will be able to discuss and describe the 5 branches of Earth Science.

3. Word of the Day: Earth System:
Any of the one of the fields of study included in the 5 branches of Earth Science.

4. Chapter 1.1 Earth Science Page 2
Earth Science involves 5 areas of study (5 specialties):
Astronomy - The study of objects beyond Earth’s atmosphere (galaxies, stars, planets.)
Meteorology - The study of the forces that cause atmosphere to change and to produce weather.
Geology - The study of rocks and Earth’s physical history.
Oceanography - The study of Earth’s oceans.
Environmental Science - The study of the interactions of organisms and their surroundings.
AMGOE!!!!!
Page 2

5. Earth’s Systems
There are 4 Earth Systems and they interact with each other.
Geosphere - Area of the surface of Earth down to its core (involves Geology.)
Atmosphere - Protective blanket of gasses that surrounds the earth.
Hydrosphere - All water on Earth and in the atmosphere.
Biosphere - All organisms on Earth as well as the environments in which they live.
Page 2

6. Geosphere Page 3 There are 3 main parts of the Geosphere:
Crust - Thin, cool outermost layer
Comes in two kinds:
Continental (Land)
Oceanic (Ocean)
Mantle - Hot, molten (almost melted) second layer. Ranges from 100˚C to 4000˚C.
Core - Very hot solid center of Earth, made up of iron and nickel.
Page 3

7. Atmosphere
Earth’s atmosphere protects the planet from harmful radiation and other stuff from space.
It is made up of mixed gasses:
78% Nitrogen
21% Oxygen
1% mixed gasses
Page 4

8. Hydrosphere Biosphere 97% is saltwater 3% is freshwater
All living things!
“Technology” - Refers to the application of scientific discoveries
Page 4

9. Classwork: 5 Branches Discussion Sheet: 1 - 7 Place in Binder page #5
Science Autobiography
Page 9 - Questions 1 through 6
To be handed in.