Earth in Space and the Importance of the Sun to the Earth

1. THE
EARTH IN
SPACE

2. Objectives:
1. Know concepts about the Earth.
2. Discuss the different planets in the
solar system.
3. Appreciate the importance of the
sun in the every activity of the
people on Earth.
4. Illustrate the importance of the sun
to the Earth.

3. KEY CONCEPTS ABOUT
EARTH:
1. The Earth is a single system with four
dynamically interconnected ‘spheres’
2. The Earth works in a cycles
3. All parts of the Earth system are
constantly changing
4. Earth is dynamically part of the solar
system and beyond
5. Distance/ time scales the in Earth and
space systems vary greatly.

4. PLANETS IN THE SOLAR
SYSTEM
There are 8 major
planets in the solar
system which divided
into two- the Terrestrial
planet and the Jovian
planets

5. Terrestrial Planets
 Are rocky planets
 These are the
MERCU
RY
VENUS
EARTH MARS

6. Jovian Planets
 Gaseous planets
These are:
URANUS
JUPITER
SATURN NEPTUNE

7. Mercury
 The closest planet to the sun
 Is only bit larger than the Earth’s moon
 Has no atmosphere to absorb meteor impacts
 Name after messenger of the Roman gods
Mercurius
 It has a diameter of 3,031 miles (4, 878 km)
 One complete revolution is 88 Earth days
 one complete rotation is 50 Earth days

8. Venus
 Second planet from the sun
 Is terribly hot
 The atmosphere is toxic
 The pressure at the surface would
crush and kill you
 Size and structure are similar to Earth
 Named after the Roman goddess of
love and beauty

9.  Has a diameter of 7, 521miles (12, 104
km)
 One complete revolution is 225 Earth
days
 One complete rotation is 241 Earth
days

10. Earth
 3rd planet from the sun
 Is a water world
 Only world known to harbour life
 It’s atmosphere is rich in life- sustaining
nitrogen and oxygen
 It’s diameter is 7, 926 miles
 One complete revolution is 365.24 days
 One complete rotation is 23 hours, 56
minutes

11. Mars
 4th planet from the sun
 Is a cold, dusty place
 It is rocky, has mountains and
valleys, and storm systems ranging
from localized tornado-like dust
 It’s atmosphere is too thin for liquid
water to exist on the surface for any
length of time

12.  Named after the Roman god of war
 Has a diameter of 4, 217 miles
 One complete revolution is 687 Earth
days
 One complete rotation is 24 hours 37
minutes and 23 seconds or the
Martian Day

13. Jupiter
 1st Jovian planet
 Largest planet in the solar system
 Name after King of gods
 It’s diameter is 143,800 km
 It’s mean distance from the sun is 5.2
AU
 One complete revolution is 11.867
years
 One complete rotation 9.9 hours

14. Saturn
A magnificent or beautiful planet
 Named after the ruler of gods of
agriculture
 2nd largest planet in terms of size,
and mass
 It’s density is ¼ of that water
 One complete revolution is 30 years
 One complete rotation is 10.7 hours

15. Uranus
 The same size as Neptune
 Named after Roman god of heavens
 84 years revolved around the sun or
the Uranian Year
 Rotates 17 hour and 14 minutes
 Has the longest season
 It’s average distance from the sun
is2.86 billion km

16.  Methane in the atmosphere gives
Uranus it’s blue- green tint
 It’s density is ¼ of that Earth

17. Neptune
 Is known for strong winds
 Is far out and cold
 Is more than 30 times as far from the
sun as Earth
 Has rocky core
Was the first planet predicted to exist
by using math, before it was detected
 Is about 17 times as massive as
Earth

18.  It was discover in the year 1846
 Named after Roman god of water
 It’s diameter is 30,775 miles ( 49,530
km)
 Revolve around the sun for 165 Earth
years
 Rotate for 19 Earth hours

19. Pluto
 9th planet from the sun
 Is unlike other planets in respect
 Is smaller than our moon
 In the year 1979 until early 1999, been an
8th planet from the sun
 On Feb. 11, 1999, it crossed Neptune’s
path and once again became the distant
planet until it was demoted as dwarf
planet status

20. Was discovered in the year 1930 by
Clyde Tombaugh
 Named after Roman god of the
underworld
 It’s diameter is 1,430 miles or 2,301
km
 Orbit around the sun for 248 Earth
years
 Rotates for 6.4 Earth day

21. Important Things
the Sun Does the
Earth

22. Oops!
What is SUN first?

23. Sun?
The star that shines in the
sky during day and gives
the Earth heat and light
Is such a constant, reliable
sight that few of us rarely
acknowledge it’s existence

24. Is one of the primary
reasons that life exist on
Earth
It has hidden benefits that
prove it is a lot more than a
gigantic lamp that lights our
daily activities

25. Important things sun does
1. Food Energy
 Through the process of
photosynthesis
 Sunlight provides the
source of food for all life on
Earth

26. 2. Vitamin D
 Is absorbed through the skin and
converted to a state that the body can use
 Requires only 30 minutes of sunlight a day
to acquire a minimum dose
 Is important in the creation and
maintenance of bones

27. 3. Happiness
 Studies that show that depression
occurs on people during the
change of seasons
 Sunlight stimulates the pineal
gland deep in the brain

28. 4. Warmth
 Life on planet would not be possible
without it that the sun provides
 A combination of the radiant light of
the sun creating direct warmth and
the atmosphere retaining and
distributing that heat allows plants
and animals life to live on this planet

29. 5. Light
Use it to plant our crops, find
shelter from the predators of the
night, and to pursue the things we
enjoy most
In short, without the life giving
light of the sun, we would be a
species lost
 In fact, we would not even exist

30. 6. Precipitation
 If it were not for the sun evaporating
the water off of the bodies of water,
we would not have the rain or snow
as we know it
 Without the sun, there would be
droughts and most of the world would
be a barren desert

31. Certainly,
The sun can cause harm. It
is the most common source of
skin cancer and has been
known to prematurely age our
skin. Yet these are small price
to pay for the enormous
benefits of sunlight provides.

32. Well !
The next time you are
outside pull up your sleeves
to catch some vitamin D,
hug a plant, and look
around at the illuminated
world created by our
multifunctional sun.

33. The End!!!
Hope you learned
something…
