Download Earth`s Layers Drawing

3­7­8­11.notebook
3/7(A) & 3/8(B)
March 07, 2011
pg.1a
The Earth‛s Layers Lesson
Objective: Students will describe the
different properties of Earth‛s layers
by identifying main ideas and
supporting details using the Main Idea
Map.
Due Today: Nothing
Feb 6­2:35 PM
Class-Work:
1. Warm Up Pre-Test
2. Finish Earth‛s Layers Drawing and questions
3. File Waves Unit Papers in your folder while
you work on your Earth's Layer
Drawing/Questions.
4. Discovery Streaming clips- Search: Earth's
Layers (first video)
6. Read 69B-73B aloud in your textbook.
7. Model Main Idea Maps (page 1b)(Highlight
bold words, Underline main topics…)
8. Start Main Idea Maps Pages:69B-73B
(Section 3.1)
Warm‐Up:
Plate Tectonics Pre-Test
1. Name the Earth‛s layers.
2. How are mountains formed?
3. Describe a “tectonic plate” in your own words.
4. What is Pangaea?
5. Name the 4 types of plate boundaries.
6. Why do earthquakes occur?
7. Why do volcanoes occur?
8. Describe the difference between folding and faulting.
9. What is a mid ocean ridge?
10. How is the lithosphere different from the
asthenosphere?
Feb 17­1:58 PM
Earth's Layers Drawing
Draw and Label the 4 layers of the Earth using pg. 70BBe sure to include the density of each layer.
Use page 70B to answer the questions below.
1. How does the density of material differ from the inner
core to the crust?
2. How does the temperature of the material change from the
inner core to the crust?
3. Which layer of Earth is thinnest?
4. Where is Earth‛s crust thinnest?
5. Where is Earth‛s crust thickest?
Feb 6­2:43 PM
Feb 6­2:38 PM
Feb 18­12:18 PM
Mar 7­9:54 AM
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3­7­8­11.notebook
3.1 Notes
Earth has several layers.
Main Idea: Earth is made up of materials with different
densities.
4.6 billion years ago Earth formed
•
Earth was a glowing ball of melted rock
•
Denser materials (iron and nickel) sank toward Earth s center
•
Less dense materials moved toward Earth s surface
•
Earth s layers = core, mantle, and crust
•
•
Main Idea: Earth‛s layers have different properties.
Scientists study the energy from earthquakes or underground
•
explosions they set off to explore Earth‛s interior
Energy moves slower through less dense materials(liquids) and
•
faster through more dense materials (solids)
Feb 18­8:58 AM
March 07, 2011
Main Idea: Core(Inner and Outer), Mantle, Crust
• • Inner Core is a ball of hot, solid metals and is under
enormous pressure
• • Outer core is a layer of liquid metals (pressure and temp.
are lower)
• • Mantle is Earth‛s thickest layer made up of hot rock,
similar to a thick paste
• • Crust is a thin layer of cool rock
• • Two types of crust: oceanic (thinnest), continental
(thickest)
Feb 18­9:00 AM
Main Idea: Lithosphere and Asthenosphere
Lithosphere = earth‛s crust and top part of mantle
•
Lithosphere sits on top of asthenosphere
•
Asthenosphere = layer of hotter, softer rock in the lower
•
mantle (similar to hot tar)
Main Idea: The lithosphere is made up of many plates.
Lithosphere is broken into many large and small slabs of rock
•
called tectonic plates
Tectonic plates fit together like a jigsaw puzzle
•
Lithosphere is similar to the cracked shell of a hard boiled
•
egg
Most tectonic plates have continental and oceanic crust
•
The continent of Africa is actually about half the size of the
•
entire plate (African Plate)
Feb 18­9:01 AM
Oct 20­9:57 AM
Homework:
Earth's interior worksheet
Feb 6­2:44 PM
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