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Homework 3 due Thursday 17 th or Tuesday 22 nd. Study Area Felmley Hall 203. Lab Samples. Practice Lab Exam. The Universe and Solar System. Reigning Theory of the Formation of the Universe. Big Bang. Four Forces of Nature. 1.Gravity 2. Strong. 3. Weak 4. Electromagnetic.
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Study Area Felmley Hall 203 Lab Samples Practice Lab Exam
The Universe and Solar System
Reigning Theory of the Formation of the Universe Big Bang
Four Forces of Nature 1.Gravity 2. Strong 3. Weak 4. Electromagnetic
The Milky Way Galaxy Earth
Origin of the Solar System Nebular Theory Swirling Cloud of Star Dust Rotating Cloud Flattens into a Disk Condensation and Accretion
Once a protostar has become a hydrogen-burning star, a strong stellar wind forms, usually along the axis of rotation. Thus, many young stars have a bipolar outflow, a flow of gas out the poles of the star. This is a feature which is easily seen by radio telescopes. This early phase in the life of a star is called the T-Tauri phase.
Our Solar System Rocky Planets Gaseous Planets
Planetary Differentiation During the time of partial melting, all the terrestrial planets separated into three layers of differing physical and chemical composition. • Crust - outer layer • Mantle - middle layer • Core - center
Uniqueness of Earth • Water in 3 phases – Hydrosphere • Solid • Liquid • gas
Uniqueness of Earth • Biosphere • plants and animals
Uniqueness of Earth • Plate Tectonics - crust, mantle, and core • are in motion
Earth System Science The Earth can be divided into individual parts (systems) to be studied, but it is recognized that each part interacts with many other parts. The boundaries of a system can be defined however you want. Systems are defined by how energy and matter cross the boundaries.
3 Types of Systems Isolated - no mass transfer - no energy transfer Closed - no mass transfer - energy transfer Open- mass transfer - energy transfer
Types of Systems The Earth (almost) Doesn't Exist The Atmosphere
Earth's Major Subsystems - the 4 spheres Biosphere Lithosphere Hydrosphere Atmosphere
Major Earth Cycles Energy and matter are exchanged between cycles