1. The Layers of the Earth!

2. Vocabulary words Earth Crust Mantle outer core inner core Lithosphere
asthenosphere

3. Day 1 B: Earth Layer’s pre-assessment D: Earth Layers notes
A: Exit Slip

4. Earth Layers The Earth is divided into four main layers. Inner Core
Outer Core
Mantle
Crust

5. The Crust The crust is the outermost layer of the Earth.
This crust is not a solid shell. It is broken up into huge, thick plates that drift on top of the soft, underlying mantle.
It is made of oxygen, silicon, aluminum.

6. Two Types of Crust
Continental crust is the crust the makes up the continents. It is thicker and older than oceanic crust.
Oceanic crust is the crust below the oceans. It is thinner and younger than the continental crust.
Example: 

7. The Mantle
The mantle is the layer of Earth between the crust and the core.
● It contains most of the Earth’s mass.
● It has more magnesium and less aluminum and silicon than the crust.
● The mantle is denser than the crust.

8. The mantle divided into 2 parts:
Upper mantle
Lower mantle.

9. Sub Layers of the Mantle
LITHOSPHERE:
This is the “crunchy” layer of the Earth.
It includes the crust and the very uppermost part of the upper Mantle.
ASTHENOSPHERE:
Soft – can bend like plastic, layer in the upper portion of the mantle.
It is located right below the Lithosphere.
Lithosphere floats on this layer (like jello)

10. Day 2

11. The core CORE: (Egg Yolk) Located below the Mantle.
It is divided into 2 layers
Outer Core
Inner Core

12. Outer Core Is liquid and is made up of mostly iron (easily magnetized)
The movement of materials in the liquid O.C. is inferred to be the cause of Earth’s magnetic field!
The O.C. is about 2250 km thick.

13. Inner Core Is the center of the Earth – 1200 km thick.
It’s solid iron and nickel. Most dense layer (heaviest)
The increased pressure causes the I.C. to be solid

14. Students: Draw this illustration.

16. Exit Slip: 1) What are the four layers of the Earth?
2) The Earth’s crust is very ______?
3) The mantle is the largest layer of the Earth? True or False
4) Is the Outer Core a liquid or a solid?

17. Answers! 1) Crust, Mantle, Outer Core, Inner Core 2) Thin 3) True
4) Liquid

18. Day 3 B: EGG demonstration D: Play Bill Nye video with worksheet
Link to video:
A: Compare notes

19. After the video:
After the video list 3 things you know now because of the video that you did not know before: 1. 2. 3.

20. Day 3 (optional)
The ppt may take 2 days so I left this as a “catch up”/optional day.
Before: Read Magic school bus “Inside the Earth”
During: Earth’s layers foldable
After: Complete the foldable and keep as a study guide