:) MADE EASY POWERPOINT SLIDE SHOW

1. THE COMPOSITION
AND STRUCTURE OF
EARTH
Jonel m. Chavez
Grade 12-abm1

2. TABLE OF CONTENTS:
Crust
Mantle
Outer Core & Inner Core

3. Crust
 It is the outer layer of the Earth.
 A cold, thin, brittle outer shell made of rock.
 The crust of the Earth is broken into many pieces called
plates.
 5-100 km thick
 Divided into two types
 Oceanic (very dense, made of basalt)
 Continental (less dense, made of granite)

6. Mantle
 The thick shell of the dense, rocky matter that
surrounds the core.
 The layer below the crust.
 The largest layer of the Earth.
 The mantle consists of iron-magnesium-silicates and it
is less dense than the core but denser than the
outermost compositional layer, which also consists of
rocky matter.

7. MANTLE

9. Outer Core
 The outer core is composed mostly of iron and
nickel, with these metals found in liquid form.
 The outer core reaches between 7,200 and 9,000
degrees Fahrenheit (4,000 and 5,000 degrees
Celsius) and is estimated to be 1,430 miles (2,300
km) thick.
 It is the movement of the liquid within the outer
core that generates Earth’s magnetic field.

10. OUTER
CORE

12. Inner Core
 The inner core is the hottest part of our planet,
temperatures between 9,000 and 13,000 degrees
Fahrenheit (5,000 and 7,000 degrees Celsius).
 This solid layer is smaller than our Moon at 750 miles
(1,200 km) thick and is composed mostly of iron.
 The iron is under so much pressure from the
overlying planet that it cannot melt and stays in a
solid state.

13. INNER
CORE

15. Sources:
 The Dr. Binocs Show Educational Videos For Kids
 The Composition and Structure of Earth _ Physical Geography
 Whataretheea
 sco_02_04.scorm
 PROD-Earths-core
 Layers of the Earth - SEG Wiki
 earth-spinning-rotating-animation-24
 core-640x353
 Composition of the Earth_ (Structure + Layers + Facts) - Science4Fun
 390px-Earth_cutaway_schematic-en.svg
(P.S) Links are not identified. Please refer to the search engines  Thank you