all about our EARTH.

1. Planet
EARTH

3. You’re
here
3rd planet
from the
Sun.

4. 5th largest
planet in
the Solar
System.

5. Mercury
Venus
Mars
Earth
Largest among the
inner planets.

6. Known as:
Blue Planet
World
Planet Earth
Blue Marble

13. Tidal Theory
Planetisimal Theory
Dynamic Encounter Theory
Condensation Theory
Big Bang Theory

14. Big Bang Theory
•The Universe originated in
an enormous explosion.
•Our universe came into
existence because of a
SOLAR NEBULA.

15. SOLAR
NEBULA
A huge spinning cloud made up
of dust particles and various
types of hot gases.

16. Solar Nebula began its contraction about
4.6 billion years ago probably because
of shock wave caused by an explosion in
the nearby region. During the contraction
process, its temperature came down and
it began to rotate very fast. As a result of
cooling, shrinking and faster rotation the
gas cloud began to collapsed.

17. The outer part of the gas cloud
detached from the main body thus,
creating our solar system. The dense
cloud heated up and pulled toward
the center to form the Sun. Other
particles within the cloud collided and
stuck together to form ever-larger
bodies including the Earth.

19. -Earth’s earliest period

21. Pre-Cambrian Period
HADEAN
Period
ARCHEA
N
Period
PRETEROZOI
C
Period

22. HADEAN Period
• Hadean derived from
“Hades”.
•1st billion years of
Earth’s Formation.
•“Hellish Period”
•Remnants of the dust
and debris.
•Atmosphere:
•Couldn’t settle to
form surface water.
•Poisonous for
living organisms.

24. ARCHEAN
Period
• Earth’s surface
began to cool down
and stabilize.
•Solid surface and
water.
•Period where 1st life
began to appear.
•Landmasses began
to form.

25. PROTEROZOIC
Period
• larger continental
landmasses continued
to form by the
accretion of the
smaller ones.
•Free oxygen

26. -Evident Life

27. Phanerozoic Period
Paleozoic
Period
Mesozoic
Period
Cenozoic
Period
Six EPOCHS
Holocene Period

28. PALEOZOIC
Period
• animals and plants in
the seas and land.

29. “Age
of the
Dinosaurs”
MESOZOI
C
Period

30. CENOZOI
C
Period
• Age of mammals.
•Period we are in.

31. Holocene/ Anthropocene
Period
“Age of Man”

33. •Cluster
- groups of galaxies held
together by mutual gravitational
attraction
•Supercluster
- Large groups of smaller
galaxy groups and clusters

36. SHAPE
“OBLATE SPHERIOD”

37. MASS
•5.9736 x 1024 Kg
•5,973,600,000,000,000,000,000,000 kg

39. Chemical Composition
34.6 % Fe
29.5 % O
15.2 % Si
12.7 % Mg
1.9 % S
0.05 % Ti
others

40. Inner Structure
•CRUST
-Earth’s outermost and
thinnest layer.
-5 km thick(Ocean); 30 km
thick(Continents).
•MANTLE
- Hot, semisolid rock, located
directly below the Crust.
- 2900 km thick
•CORE
Outer Core- liquid layer
Inner Core – solid layer

42. Earth’s Atmosphere
Atmosphere is very important to
life on Earth and does many things to
help protect life:
•Big blanket of Insulation
•Keeps the overall temperature of the
Earth fairly steady.
•Absorbs Sun’s radiation.

43. Earth’s atmosphere is
divide into 5 major layers

44. TR P SO PO HERE
•Lowest layer of Earth’s atmosphere
•Layer next to the ground
•30,000- 50,000 ft.high.
•The layer where we live and even where planes fly.
•Almost all weather occurs within this layer

46. ST A OT SR HERE
•Layer that gets its heat by the ozone layer
absorbing the radiation from the Sun.
•160,000 ft.high.
• second layer
P

48. MESOS HERE
•Layer where most meteors burn up upon entry.
•Coldest place in the Earth’s atmosphere
•Weather Balloons and jet planes cannot
fly high enough to reach this layer
P
•164,040 ft

50. TH R OM SE HEREP
•Space shuttle and international space station
orbits here
•The air here is very thin
•Extends 90 km to 50-100 km above our planet

52. E OX S HEREP
•Outermost layer of the Earth
•Last and thinnest layer
•Its density is so low that particles collide rarely,
making it possible for energetic particles to
escape Earth’s gravity.

55. Earth’s surface is covered with water having an area of
361,800,00 sq.km (70 %) and 148,300,000 sq.km (30%) land
taken up by the 7 continental landmasses.

56. Did you know that…
250 million years ago , most of the
land was connected in one large
landmass collectively known as
supercontinent called “PANGAEA”-
“all lands”.

57. PANGAEA
•Covers 1/3 of the Earth’s
surface.
•The term began being
used in the early 20th
century after Alfred
Wegener noticed that the
Earth’s continents looked
like they fit together like a
jigsaw puzzle.

59. Break-Up

60. before after

62. The reason for the SEASONS
1. The Earth is tilted.
- as it makes its yearly journey
around the Sun.
2. The Earth’s tilt.
- The Earth’s axis is tilted at an
angle of 23.5 degrees.

66. In astronomy, a satellite is a natural body that
revolves around a planet and is also called MOON.

67. In Aerospace and Space Exploration, a satellite is a
man-made object launched into space to orbit the
Earth, moon and other celestial bodies.

68. Most important satellites orbiting Earth now
Hubble Space Telescope
Galaxy 14
GOES-12
The Moon
KH-13
GPS IIR11
International Space Station
NOOAA 17
LANDSAT 7

69. Hubble Space Telescope
Galaxy 14

70. Moon
GOES-12

71. KH-13 GPS IIR11

72. ISS
NOAA-17

73. LAND SAT 7

75. The reason for the SEASONS
 Rotation an Axis
- 24 hours
- 23 hours & 56 minutes and 04.09053
seconds Revolution around the Sun
-365 days
-365.2425 days

78.  Earth’s Circumference at the Equator
- 40,075.16 km
 Earth’s diameter at the Equator
-12,756.1 km
 Average distance from the Earth to the
Sun
- 149,669,180 km Average distance from the Earth to the
Moon
- 384,403.1 km

80.  Life
 Water
 Geologically Active
 Size

81. TRIVIA
• Earth’s Population:
- 7,039,191,305

82. • Earth’s Highest & Lowest Point:
- Mt.Everest
- Marianas Trench

83. • Earth’s coldest part:
-Antarctica

84. • Earth’s symbol:

85. • Earth’s age:
- 4.6 Billion years old

87. GLOBAL WARMING

93. END
Reported by:
Sharmaine Tiu
Gabrielle Tiamson
BEED IV