Post on 04-Jan-2016
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EARTH AS A SYSTEM
Chapter 1
Past Perceptions Meet New Issues pg 4-5
Past Perceptions (paragraph
1):***don’t write about CFCs
New View (paragraph 3):
A New View of EarthPast Perceptions Meet New Issues
Past Perceptions: scientists studied Earth as a collection of parts
New View: Earth is more than a collection of parts---various parts are connected (Earth as a whole)
The Rise of Earth System Science pg 5
What is a model?
What does it do?
The Rise of Earth System Science
What is a model? A representation of an object, a process, or a phenomenon
What does it do? It may show physical features or show how something works
Examples of Models
Model house---lacking water, electricity, smaller
Globe/map---smaller, not always to scaleCarbon cycle*****
What Is a System? Pg 5/6
What is a system?Fill out the Venn Diagram:
CLOSED SYSTEM OPEN SYSTEM
What is entering and leaving?
ENERGY—sunlight, heatMATTER---anything physical, made of atoms
What Is a System?
What is a system? A kind of model, part of the universe that can be studied separately
CLOSED SYSTEM OPEN SYSTEM
Energy Can enterOr leave
Matter CANNOTEnter or Leave
Matter CANEnter or Leave
A Planetary System pg 6/7
Overall, Earth is a ___system because______.
A consequence of Earth being a _______system is that________
Pair Share: Decide if the following are open or closed systems
Is energy entering and/or leaving?Is matter entering and/or leaving?
Pair Share: Decide if the following are open or closed systems
Is energy entering and/or leaving?Is matter entering and/or leaving?
Pair Share: Decide if the following are open or closed systems
Is energy entering and/or leaving?Is matter entering and/or leaving?
Pair Share: Decide if the following are open or closed systems
Is energy entering and/or leaving?Is matter entering and/or leaving?
WhiteboardDraw a model---decide if it is open or closed
You can draw an object, a process, a phenomenon (situation)
THINK:Is energy entering/leaving?Is matter entering/leaving?Individually decide:1. Open or Closed?2. Why?
Earth as a Closed System
Explain the significance of Earth as an essentially closed system.
HINT: natural resources, waste…
Earth System’s Four Spheres pg 8-10
Atmosphere Geosphere
Hydrosphere Biosphere
Interactions among the Spheres pg 10
Read
Pick one example: draw scenario and label the 4 spheres.
How interactions Change the spheres pg 11
What factors have caused spheres to change? List the factor(s) of which sphere and the sphere that changed.
FACTOR/part of which sphere? SPHERE THAT CHANGED
Cold temp/atmosphere biosphere (plants died)
Classzone.com---Sphere Interactions
ES0103#1-6