Download Today`s Objectives

• Have a seat and on the card you just received, draw
a picture of what you think the inside of Earth looks
like.
• 1. Introduce Ch. 7 What is plate tectonics?
• 2. Begin Ch. 7 Section 1 Outline.
• 3. Discussion over the Earth’s Interior
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Brennan Angle
Kaylee Miller
Logan Hickman
Luke Hasso
Haille Riddle
Jake Mobley
Mary Barber
Ben Lippincott
Nick Cope
Jacob Forte
Colin McMasters
Morgan Schaber
Mary Barber
I.
A.
Ch. 7 Plate Tectonics
What is Plate Tectonics?
The Early Earth and Plate Tectonics
The theory that Earth’s crust is divided into
sections and these sections are in constant
motion.
Inside the Earth
Ch. 7 Sec. 1
• What do you think the
inside of Earth is like?
II. Composition of the Earth
A. Earth is divided into three layers- the crust,
mantle, and core.
1. Earth’s layers are arranged by their densities
III. The Crust
A. Crust- Earth’s outer layer. Also the thinnest layer
1. Solid rock that includes dry land and ocean floor.
2. 5- 100 km thick.
3. Two types- 1. oceanic crust = basalt, more dense
2. continental crust = granite, less dense
IV. The Mantle
A. Layer between the crust & core
B. Mantle is Earth’s thickest layer.
C. Mantle is made up of very thick magma.
Pillow Lava - Lava Dive Hawaii
V. The Core
A. made up mostly of iron and nickel.
B. Core extends from the bottom of the mantle to the
center of Earth.
C. Mars could fit into Earth’s core.
100 Greatest Discoveries Shorts: The Core of the Earth : Video : Science Channel
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journey to the center of the earth - Google Videos#q=earth's+layers&hl=en&emb=0&client=qsb-win
VI. The Structure of the Earth
• A. Earth is divided into five main physical layers
1. Lithosphere- outermost, rigid layer. Made of
two parts.
a. the crust
b. the rigid upper part of the mantle
B. Asthenosphere- soft layer of the mantle on which
pieces of the lithosphere move.
1. made of solid rock that flows very slowly
C. Mesosphere- beneath the asthenosphere. Strong,
lower part of the mantle.
1. Extends from the bottom of the asthenosphere to
the core.
D. Outer Core- liquid layer of Earth’s core that
lies below the mantle
1. Surrounds the inner core.
E. Inner Core- solid, dense center of our planet
• Get out your Ch. 7 Section 1 outline and a scrap
piece of paper and number it 1-3.
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1. Question of the Day
2. Review Earth’s Layers
3. Finish Discussion and Outline.
4. Earth’s Layers Assignment
• Bass tapeworms attach to the gills and intestines of
bass fish. These worms survive by taking nutrients
from the bass. What type of relationship does this
represent?
• A. predation
• B. parasitism
• C. mutualism
• D. commensalism
VII. Tectonic Plates
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If you baked a giant pie and were moving it what
do you think would happen to the crust?
Pieces of Earth’s lithosphere that move around on
the asthenosphere.
1. The Earth’s plates are like pieces of a puzzle.
2. Plates can be either continental crust, oceanic
crust or both.
VIII. Mapping Earth’s Interior
A. How do we know so much about the mantle and
core? Pillow Lava - Lava Dive Hawaii
- Earth's Core - Part 1
1. Seismic Waves- vibrations created by
Earthquakes that travel through Earth
2. When seismic waves travel through different
materials they travel at different speeds
Assignment
Points
Total Points
Received Possible
1. Signed Rules & Procedures
2. All About You
3. Brain Pop Sci. Meth. WS
4. Observation vs. Inference
Unit1 Section 2 Notes
10
5
10
10
5. Sci. Meth Quiz
6. Tootsie Pop Lab
7. Science Pre-Test
21
10
10