The Planet Earth and Sphere and some Layers

A file for discussion of Planet Earth and its own system

1. Wow!
EARTH-
terrefic
Earth and Life Science
Presented By:
Ms. April Ross G. Monzales
SHS Teacher

4. RECALLRECALL
TEST YOUR KNOWLEDGE

5. EARTH GAMEEARTH GAMEEARTH GAME

7. The Earth is the only ocean
planet in solar system

8. The Earth is the only ocean
planet in solar system

9. Antarctica is the coldest place
on Earth.

10. Antarctica is the coldest place
on Earth.

11. It’s core has three parts.

12. It’s core has three parts.

13. LEARNING OBJECTIVES
Define the concept of a system,
Recognize the Earth as a system
composed of subsystem,
Identify the visible features of the
different Earth systems.
Apply the understanding about
what uniqueness of the Earth,
being the only planet with
properties necessary to support
life.

15. Earth called as the “Blue
Marble” - like a blue globe
encircled by swirling while
cloud as seen from the
outer space.
Goldilocks Zone -
habitable or life Zone

16. (1) It has liquid water;
(2) surface or lithosphere which includes
the crust and the upper mantle; and
(3) It has atmosphere that shelters it
from the worst of the sun’s rays

17. The CHARACTERISTICS of Earth
Elliptical orbit
93 million miles away from the Sun
It takes about 365.25 days for Earth to complete one
orbit around the Sun.
Shape: Earth is an oblate spheroid
Surface Area: The total surface area of Earth is about
510 million square kilometers or 197 million square
miles.
Land: About 29% of the surface
Water: About 71% of the surface

18. A
t
m
osph
e
r
e

come from the Greek word atmos and
sphaira.
Its extend outwards about 10,000 km
from the surface of Earth.

19. Layers: Earth's atmosphere consists of several
layers, including the troposphere,
stratosphere, mesosphere, thermosphere,
and exosphere.
Composition: The atmosphere is mainly
composed of 78% nitrogen and 21%
oxygen, with trace amounts of other
gases such as argon, carbon dioxide, and
neon.

20. Layers of the Atmosphere
EXOSPHERE
Uppermost layer, or final
frontier.
has a leaking air.

21. Layers of the Atmosphere
THERMOSPHERE
High-energy X-rays and UV
radiation from the Sun .

22. Layers of the Atmosphere
MESOSPHERE
Most meteors burn up in the
mesosphere.

23. Layers of the Atmosphere
STRATOSPHERE
The infamous ozone layer is
found within the stratosphere.

24. Layers of the Atmosphere
TROPOSPHERE
Most cloud appear
here.

25. H
y
d
r
osph
e
r
e

Oceans and Seas: About 71% of Earth's
surface is covered by water, primarily in
the form of oceans and seas.
Freshwater: Freshwater is found in rivers,
lakes, and glaciers, as well as
underground in aquifers.

26. G
e
o
sphe
r
e

Solid portion of the Earth
It covers Earth’s interior
composed of rocks, minerals, and
landforms.
Internal Earth’s System
Crust
Mantle (Upper and Lower)
Core (Inner and Outer)

27. G
e
o
sphe
r
e

28. CRUST
The thinnest layer of the Earth
40 km on average, ranging from 5–70 km
(~3–44 miles) in depth.
Mohorovicic discontinuity. (bounderies)
Two types of Crust
Continental and oceanic crust
Types of Tectonic Plate Boundaries
convergent (moving one toward the other)
divergent (moving away from the other)
and
transform (moving laterally).

29. The Continent Drift Theory
German Meteorologist
proposed the Theory of
supercontinent Pangea
and Panthalassa.
Alfred Wegener (1912)

30. Types of Tectonic Plate Boundaries
convergent divergent
Transform

31. Mantle
Two types of Crust
Continental and oceanic crust
Types of Tectonic Plate Boundaries
convergent (moving one toward the
other)
divergent (moving away from the
other) and
transform (moving laterally).

32. Core
Two types of Core
Outer Core - made mostly of iron
and nickel become a liquid. It is very
hot with a temperature
Inner Core- thick and is the hottest
layer.
Lehmann discontinuity. (boundaries)

33. BIOSPHERE
contains the entirety of Earth’s
living things. It is sometimes
referred to as the “zone of life”
Biomes are the world’s major
communities.
Five Major Biomes
Aquatic1.
Forest- can be tropical,
temperate, boreal forest and
taiga
2.
Desert3.
Tundra- coldest of all biomes. 4.
Grass land5.

34. Generation: Earth’s magnetic field is
generated by the movement of molten
iron and nickel in the outer core
through the dynamo effect.
Protection: The magnetic field protects
the planet from harmful solar and
cosmic radiation by deflecting charged
particles.
These orbital and physical
characteristics make Earth a unique
and dynamic planet, supporting a
diverse range of life forms and
environments.
MAGNETIC FIELD

35. EARTH’S MOON
Earth’s Moon is a natural satellite
that significantly influences our
planet by creating tides and
stabilizing Earth’s axial tilt.The
moon orbits Earth at an average
distance of 384,400 kilometers or
238,855 miles , completing an
orbit every 27.3 days. The Moon’s
surface features dark basaltic
plains, cratered highlands, and
numerous impact craters.

36. HUMAN IMPACT
Population: Earth is home to over
7.8 billion people, with diverse
cultures, languages, and societies.
Environmental Issues: Human
activities have led to
environmental challenges such as
climate change, deforestation,
pollution, and loss of biodiversity.

37. Thank You to
Listening
and your
Attention