1. What you Learned (don’t fill out yet!)
8.25 Bell Ringer
Create a KWL Chart about “Earth’s Layers”
What you Know
What you Want to Know
What you Learned (don’t fill out yet!)

2. LAYERS OF THE EARTH
Directions: Fill out at least 4 facts in the “Learned” column from the brainpop video

3. Standard
S6E5a.
Compare and contrast earth’s layers including temperature, density, and composition

4. How Many Layers Are There?
There are four layers of the Earth:
- the crust - the mantle - the outer core - the inner core

5. Earth Layers K.I.M Chart
Key Term
Information
Memory Cue

6. Crust Density: The least dense layer: Outermost
Thickness: The thinnest (32 km or 25 miles) layer
Temperature: The coolest layer
Composition: Mostly Oxygen (47%) and Silicon (28%)
Connection Think, Pair, Share: If it is the top layer do you think it is the densest or least dense layer?

7. What Does Crust Look Like?
A lot of the crust is hard to see because it is covered by soil, rock and water
Anywhere you can see rock, you are seeing the crust of the Earth!!!

8. What could we compare the crust of the Earth to?
Example:
It is similar to the peel of an apple in the sense that it is thin and covers the outside of the Earth
Think Pair Share—any other ideas?

9. Continental Crust Makes up continents Light rocks, such as granite
Thicker than ocean crust
Granite--

10. Oceanic Crust Makes up ocean floor Contains dense rock, such as basalt
Sinks below continental plates
Thinner than continental crust
Basalt--

11. Crust Review:
Location:
Temperature:
Density:
Made up of:
Thickness:

12. Mantle Density: More dense than crust: Beneath crust
Thickness: The thickest layer (1800 miles)
Temperature: 870-4,400 degree Celsius; 2nd hottest
Composition: Mostly oxygen (44%), Silicon (21%), Magnesium (22.8%)
Viscous: Mostly Solid, Oozy

13. What could we compare the Mantle of the Earth to?
Example:
It is similar to the white part of an apple in the sense that it is the thickest part
Think Pair Share—any other ideas?

14. Mantle The Mantle is HOT (870-4400 degree Celsius!) Ellen video
At this temperature the rock begins to melt making the Mantle thick and oozy!
Mantle is what bursts out of volcanoes
Ellen video

15. Mantle Review:
Location:
Temperature:
Density:
Made up of:
Thickness:

16. Lithosphere Made up of crust and very top of mantle
Floats on top of the asthenosphere and slides around slowly
Broken up pieces are called “tectonic plates”

17. ASTHENOSPHERE
Hotter, softer layer of rock on which the lithosphere rests
Contains convection currents (mantle is constantly rising and sinking)

18. What could we compare the Core of the Earth to?
Example:
It is similar to the seeds or core of an apple in the sense that it is the center and the hardest/densest part.
Think Pair Share—any other ideas?

19. Outer Core Density: More dense than mantle Composition: Iron & Nickel
Thickness: 1400 miles thick
Liquid
Responsible for magnetic field

20. Inner Core Density: Most dense layer Composition: Iron & Nickel
Thickness: 800 miles
Temperature: Hottest layer
Solid
So much pressure that despite the hot temperature that would melt the rocks it stays solid.

21. Core Review: Location: Temperature: Density: Made up of: Thickness:

22. 8.26 Bell Ringer

23. Layers of the Earth Rap

24. On back/left hand side of notes draw and label the Earth you see in your hand

25. On back side of notes draw and label the Earth you see in your hand
Crust
Mantle
Outer Core
Inner Core

26. Earth Layers Tree Diagram
Crust
Temperature
Density
Composition
Picture
Mantle
Outer Core
Inner Core

27. Bell Ringer
The Earth is like an egg. Explain this analogy by relating each part of a peach (each layer—shell, egg white, yolk) to each layer of the Earth.
Write your claim and evidence (why does each layer represent the each part of the egg)

28. Layers of the Earth Rap

29. Earth’s Layers

30. Bell Ringer
Which cross-section shows the correct thickness of Earth’s layers? Write your claim and evidence.

31. Stations
1. Hand-On: Earth’s Layers Foldable 2. Teacher Directed: Earth Layers Reading 2. Technology: Georgia Virtual Learning

32. EARTH’S LAYERS FOLDABLE
Please listen carefully to the following instructions

33. Materials Coloring pencils/Crayons Scissors Glue
Earth’s Layers Foldable Handout

34. Step 2 Color the Earth Layers Picture Inner Core- RED Outer Core-PINK
Lower Mantle-ORANGE
Middle Mantle-LIGHT-ORANGE
Upper Mantle-YELLOW
Oceanic Crust- DARK BROWN
Continental Crust- LIGHT BROWN
Ocean - BLUE

35. Step 3
Information: Fill out the 4 boxes using information containing the composition, state of matter, and thickness of each layer from your notes or book.

36. Step 3 continued…. The Mantle Composition: The mantle is made of…
Thickness: The thickness of the mantle is about…km
State of matter: The state of matter of the mantle is a liquid/solid

37. Step 4: Cut and Glue
Cut out the picture of the (colored) earth layers and glue it in your notebook. Label the page “Earth Layers Model” in your notebook.
Cut out the 12 labels and correctly glue them on each layer.
Cut out the 4 information boxes and glue them next to (right, left, above or below) the layers in your picture.

38. Earth’s Layers

39. Match term with pictures and definition. When finished, raise your hand. Copy into notebook when correct.
When finished, finish homework (Earth Layers Foldable and Questions)