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Recognize The Uniqueness of Earth

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EARTH AND LIFE

SCIENCES

JERRY DE LEON TAAY


TEACHER II
NABUSLOT NATIONAL HIGH SCHOOL
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
What is common among the
choices made by Goldilocks?
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.

Some characteristics that make a planet


habitable for humans are oxygen, water,
sunlight, protective atmosphere, gravity, and
temperature.

Essential Question-
What are the characteristics that make a planet habitable for
humans? What conditions need to exist in order for life to
survive?
Oxygen is a key ingredient to life.
Oxygen is constantly put
All human beings breathe oxygen.
into the atmosphere by
plants and trees.

Earth has a
breathable
atmosphere.
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.
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.
Reason 4: Protective Atmosphere

The ozone
is the layer
around the
The earth that
protective screens out
atmospher harmful
e around radiation.
the earth is
needed to
for the
survival of
humans.
Reason Five: The Sun
If there was no Sun, there would be no life on Earth. Earth
would not exist.

Temperature

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
Reason Six:

Gravity is what holds


us down to the
planet, without it we
would fly out into
space.

Too little
gravity
Too much gravity tires
results in
muscles, breaks bones
weaker and would require a lot
bones and more energy to move.
muscles.
Nutrients
• Used to build and maintain an organisms body
MAGNETIC FIELD

• A planet requires a
rapidly rotating magnetic
filed to protect it from
flares from nearby stars
and from harmful
radiation
Is there a possibility that
there are OTHER
PLANETS are habitable
aside from Earth?

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