1. Can we dig a hole to China? Why or why not?
Bellwork:
Can we dig a hole to China?
Why or why not? 1. 2. 3.

2. New Unit: Earth’s Interior
Properties of the Layers of the Earth
Results of the unique properties of Earth’s interior
Earth’s Magnetic Field
Convection and Plate Tectonics

3. A JOURNEY TO THE CENTER OF THE EARTH…
How was the Earth formed?
How do scientists study the Earth’s interior?
Why should we care what’s inside the Earth?
What are the layers of the Earth like?

4. How was the Earth formed?
A young Earth moments after a collision with a Mars-sized planetoid over four billion years ago.
© American Museum of Natural History
Presentación
Show the video of how the Earth was formed
Discuss how where the sources of heat come from.
Why are there layers? Differentiation..

5. How do scientist study the Earth’s interior?
Think-Pair-Share in Table Groups

6. How was the Earth formed?
Many geologists believe that as the Earth cooled the heavier, denser materials sank to the center and the lighter materials rose to the top.

7. How do scientists study the Earth’s interior?
Studying how earthquake waves move through the Earth.
Chemical analysis of lava and rock that have come to the surface of the Earth.
Modeling the Earth’s magnetic field.

8. What are the layers of the Earth like?

9. Properties of Earth’s Layers Jigsaw Activity: Part 1
Group 1: Distance
Group 2: Density
PROPERTY GROUPS
Group 3:
Phase Characteristics
Group 4:
Temperature & Pressure
Group 5.
Unique Properties
Outline Jigsaw Group Structure
Each one of you will be in an Earth Group and a Property Group
Outline Goals for Each Group
Goals:
Collect data about properties of the layers.
Share information with your original Earth Group.

10. Properties of Earth’s Layers Jigsaw Activity: Part 2
LAYER GROUPS
Lithosphere
Asthenosphere
Lower Mantle
Outer Core
Inner Core
Outline Jigsaw Group Structure
Each one of you will be in an Earth Group and a Property Group
Outline Goals for Each Group
Center
Goals:
Create an “Earth Table” describing the layers’ properties.
Each group will guide us through a tour of one layer of the Earth.

11. TO DO: Part 1 Get into your “Property Groups” Assign roles in groups
Organizer/leader; action taker/doer; data keeper
Gather and record data
Complete worksheet and answer your property questions
IF YOU FINISH EARLY:
1. switch property groups
2. answer challenge questions

12. TO DO: Get in to Layer Groups
Share your property data thoroughly with your layer group
Record your information in the Earth Table
Make sure that everyone in your group has a full set of data

13. to base of layer (miles)
Earth Table
Stop #
Name
Depth
to base of layer (miles)
Material
(composition)
Density
(g/cm3)
Pressure
(MPa)
Phase
(s,l,p,g)
Temp.
(°C)
Earth’s Surface
Atmosphere & Sediments
0.001 &
1.5
0.1
Gas & Solid 10
Deepest Drill Hole
7.5
Granitic Rock
2.7
360
Solid
200
Crust 22
Mafic Rock & Olivine-rich Rock
3.0
1,100
600 1
Lithosphere
(crust + upper mantle) 2
Asthenosphere (middle mantle) 3
Lower Mantle 4
Outer Core 5
Inner Core 6
Center of the Earth