The document discusses the internal structure of the Earth. It is composed of several concentric layers arranged based on density, from the least dense crust on the outside to the most dense inner core at the center. The main layers are the crust, mantle, outer core, and inner core. The document provides details on the composition and characteristics of each layer.

3. Direction: Match the descriptions in
Column A with the layers of the Earth in
Column B. Write only the letter of the
correct answer.

4. ____1. the boundary
between crust and mantle
____2. mantle layer with less
pressurized magma
____3. the layer where solid
iron and nickel can be found
____4. layer that contains
liquid iron and nickel
____5. the boundary
between core and mantle
A
A. crust
B. inner core
C. outer core
D. upper mantle
E. Gutenberg
discontinuity
F. Mohorovicic
discontinuity
B

5. ____1. the boundary
between crust and mantle
____2. mantle layer with less
pressurized magma
____3. the layer where solid
iron and nickel can be found
____4. layer that contains
liquid iron and nickel
____5. the boundary
between core and mantle
A
A. crust
B. inner core
C. outer core
D. upper mantle
E. Gutenberg
discontinuity
F. Mohorovicic
discontinuity
B
F
D
B
C
E

6. The Earth Internal
Structure
Prepared by Sir Gino

7. Identify the internal structure of the earth.
Illustrate the internal structure of the earth.
Appreciate the value of the earth’s internal
structure.

8. The earth’s
Internal Structures

9. The Earth is the 3rd planet from the sun. It is
considered a rocky inner planet. However, the
rocky planet’s inner part consists of several
layers, much like an onion

10. The layers of the Earth were formed by planetary
differentiation. It is the process of having different
densities of materials arranged in an order of lightest
to heaviest from outside, going inwards. The lighter
materials floated on top and created the crust while
the heaviest metals sunk at the center, creating the
core. The mantle contains materials with
intermediate density.

11. Layers of the
Earth

12. 1.Crust
2. Mohorovicic Discontinuity
3. Mantle
4. Gutenberg Discontinuity
5. Outer core
6. Lehman Discontinuity
7. Inner core

13. Crust
The crust is the
outermost
chemical layer, and
the layer humans
currently reside
on.

14. Mohorovicic Discontinuity
It is caused by the
dramatic change in
composition
between the mantle
and the crust.

15. Mantle
The mantle is the mostly-
solid bulk of Earth’s interior.
The mantle lies between
Earth’s dense, super-
heated core and its thin
outer layer, the crust.

16. Gutenberg Discontinuity
refers to the
transition zone
between the
mantle and the
core.

17. Outer Core
The outer core is
responsible for
Earth's magnetic
field.

18. Lehman Discontinuity
is an abrupt increase
of P-wave and S-wave
velocities at the depth
of 220 km (140 mi)

19. Inner Core
The inner core provides an
important part of the energy
budget for the geodynamo as
latent heat is released and
light elements are
preferentially segregated into
the fluid outer core.

20. Questions?

21. Generalization

22. Describe the earth’s internal
structure from densities of
materials in an order of lightest to
heaviest.

23. Application

24. Direction: (PART 1) Create an
illustration of the earth’s internal
structure and label each layer.

25. Direction: (PART 2) Answer the following
questions:
1.What element is the most abundant in the
Earth’s crust?
2.What elements make up most of the mantle?
3.What materials make up the inner core?

26. Thank you!