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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 Objective: • Students will be able to discuss and describe the 5 branches of Earth Science. Word of the Day: • Earth System: – Any of the one of the fields of study included in the 5 branches of Earth Science. Chapter 1.1 Earth Science Earth Science involves 5 areas of study (5 specialties): 1. Astronomy - The study of objects beyond Earth’s atmosphere (galaxies, stars, planets.) 2. Meteorology - The study of the forces that cause atmosphere to change and to produce weather. 3. Geology - The study of rocks and Earth’s physical history. 4. Oceanography - The study of Earth’s oceans. 5. Environmental Science - The study of the interactions of organisms and their surroundings. AMGOE!!!!! Page 2 Earth’s Systems There are 4 Earth Systems and they interact with each other. 1. Geosphere - Area of the surface of Earth down to its core (involves Geology.) 2. Atmosphere - Protective blanket of gasses that surrounds the earth. 3. Hydrosphere - All water on Earth and in the atmosphere. 4. Biosphere - All organisms on Earth as well as the environments in which they live. Page 2 Geosphere There are 3 main parts of the Geosphere: 1. Crust - Thin, cool outermost layer a) Comes in two kinds: Continental (Land) Oceanic (Ocean) 2. 3. 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. QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. Page 3 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 QuickTime™ and a TIFF (Uncompressed) decompressor are needed to see this picture. Page 4 Hydrosphere • 97% is saltwater • 3% is freshwater Biosphere • All living things! “Technology” - Refers to the application of scientific discoveries Page 4 Classwork: • 5 Branches Discussion Sheet: 1 - 7 Place in Binder page #5 •Science Autobiography • Page 9 - Questions 1 through 6 To be handed in.