Earth and Life Science

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3. •A little girl kicks a soccer
ball. It goes 10 feet and
comes back to her. How is
this possible?

4. Ever heard of gravity?
She kicked it up.

5. •An electric train is moving
north at 100mph and a wind is
blowing to the west at 10mph.
Which way does the smoke
blow?

6. There is no smoke
with an electric train.

7. •How can you lift an
elephant with one
hand?

8. It is not a problem,
since you will never
find an elephant with
one hand.

9. •If a doctor gives you 3 pills and
tells you to take one pill every
half hour, how long would it
take before all the pills had been
taken?

10. 1 hour! Take the 1st pill right
away, half an hour later take the
2nd and half an hour after that
the 3rd. Total time spent: 1
hour!

11. Some months have 31
days, others have 30 days.
How many have 28 days?

12. All months have 28
days.

13. PLANET EARTH and
ITS PROPERTIES TO SUPPORT LIFE
Recognize the uniqueness of Earth being the only planet in
the Solar System with properties necessary to support Life

16. What is common among the
choices made by Goldilocks?

20. Essential Question-
What are the characteristics that make a planet habitable for
humans? What conditions need to exist in order for life to
survive?
Earth is unique in the Solar System as being the only planet
which is able to support life in all its forms. There are many
reasons why this happens.

21. Oxygen is a key ingredient to life.
All human beings breathe oxygen.
Earth has a
breathable
atmosphere.
Oxygen is constantly put
into the atmosphere by
plants and trees.

22. Water on Earth can be found anywhere, in its three states. It
can be frozen, taking the form
of ice. It can be liquid, seen in
seas and oceans and lakes.
No other planet has liquid water.
Water is essential for life –
our bodies are 50-70% water.
Water can transport nutrients, absorb heat and regulate
body temperature.

23. Sunlight is very important. Heat, light, and energy
all come from the sun. Trees and plants need the
Sun to produce oxygen through a process called
photosynthesis. We also need sunlight to grow our
food - crops and animals.

24. The ozone
is the layer
around the
earth that
screens out
harmful
radiation.
The
protective
atmospher
e around
the earth is
needed to
for the
survival of
humans.

25. Reason Five: The Sun
If there was no Sun, there would be no life on Earth. Earth
would not exist.
Because of Earth's ideal distance from the
Sun, it receives the perfect amount of heat
and light to support life. Earth is the only
planet with the right temperature range
for there to be liquid water

26. Gravity is what holds
us down to the
planet, without it we
would fly out into
space.
Reason Six:
Too little
gravity
results in
weaker
bones and
muscles.
Too much gravity tires
muscles, breaks bones
and would require a lot
more energy to move.

27. Nutrients
• Used to build and maintain an organisms body

28. MAGNETIC FIELD
• A planet requires a
rapidly rotating
magnetic filed to
protect it from flares
from nearby stars and
from harmful radiation

29. Is there a possibility that
there are OTHER
PLANETS are habitable
aside from Earth?

32. Earth
• The third planet in the solar system
• According to radiometric dating, it is
said to be 4.56 billion years old
• Revolves the sun around 365-366 days
• The only planet to harbor life.

33. Earth Science
It is also called as “geoscience” it is the study
of the Earth’s characteristics and behavior

34. Why is the Earth habitable?
• It has a right distance from the sun
• It has a strong magnetic field that shields us from the
electromagnetic radiation coming from the sun
• It is protected by plate tectonics from the very hot
temperature of the Core
• It has the right chemical materials that could support
life
• The presence of oxygen in the atmosphere
• Right atmospheric conditions.

35. Earth’s System as a Closed System
Closed system—it means that the something gets
what it wants but neither it returns it back.
The Earth gets energy or heat from the Sun but it
returns only some of the energy back to space.

36. Cycles
• It is one of the major themes of the Earths
subsystems
• It is the process wherein the material in the
Earth system was continuously recycled in
numerous overlapping cycles.

39. Atmospheric Circulation
It is the cycle happening in the atmosphere that is a way
of redistributing the heat from the sun to the surface of
the Earth.

41. Hydrological Cycle (Water Cycle)
• It is the cycle that explains the continuous
movement of the water, above or below the
Earth’ surface
• It is also involves the transfer of energy
(evaporation to condensation)
• The sun is the driving agent of this cycle,.

43. Process of Hydrological Cycle
• Evaporation
• Condensation
• Precipitation
• Infiltration

45. Tectonic Plates
• These are rocky parts of the lithosphere
that are divided into numerous plates due
to the drifting of the plates as times goes
by.
• Estimated to move about 1-16cm per year.

46. The Pioneers of the
Continental Drift Theory

53. Crust
• It is Earth’s outermost and thinnest layer
• It is the layer of the Earth where life exists
• It comprises of 1% of the Earth’s volume
• Two types of Earth Crust: Oceanic (Ocean
bases) and Continental (found beneath
the continents)
• Temperatures ranges from 200-400 degree
Celsius.

55. Mohorovicic Discontinuity (Moho)
• It is the boundary of the crust and the mantle
• Discovered by Croation seismologist Andrija
Mohorovicic in 1909
• Showed there are two kinds of seismic waves:
• P-waves (first arrive but slowly)
• S-waves (last arrived but faster)

56. Mantle
• Also called as “Sima”
• The biggest part of the Earth in terms of depth
and volume
• The mantle is 2,900 km thick
• The average temperature is 3,000 degree
Celcius

57. Outer Core
• It is the fluid (magma-like) part of the Core
• It is 2,890-5,000km beneath the Earth’s surface
• The temperature of the outer core ranges from
4,500-6,000 degree Celcius
• This is the layer that creats the Earths magnetic
field.

58. Inner Core
• It is the deepest part of the Earth and made up
of iron-nickel alloy
• The average temperature of the Inner Core is
5,500 degree Celsius.
• Unlike the Outer Core, it is solid due to the
pressure created by the total weigh of the
three other layers.

60. The Biosphere
The biosphere is the largest ecosystem,
because is made of Earth planet and all
the living and non-living things that
inhabit it.

61. Photosynthesis

62. Photosynthesis
1. The plant draws up water (H2O) through its roots
2. The leaves take in CO@ from the air
3. The leaves trap energy from the sunlight
4. The plant uses the energy of the sunlight to turn
water and CO2 into sugar and oxygen
5. The plant releases oxygen into the air.
6. The plant uses the sugars for growth,
development and reproduction.