it is about the solar system and planets in it

1. The Solar System
PROJECT BY
BHAVANA

2. Introduction
• A solar system consists of a star
and objects that revolve around
it.
• Our Solar System consists of the
Sun and nine known planets and
the moons that orbit those
planets.
• The force of gravity keeps
planets in orbit around the sun.

4. The Sun
• It is over one million times
larger than Earth.
• It is eight light minutes away
from Earth or 92,957,000 miles.
• The temperature is 15 million
degrees K. One K = 13-25 million
degrees!

5. The Nine Known Planets
Inner Planets Outer
Planets
• Mercury
• Venus
• Earth
• Mars
• Jupiter
• Saturn
• Uranus
• Neptune
• Pluto

6. Mercury
• Closest planet to the
sun
• Approximately half
the size of Earth
• Rocky surface covered
by craters
• No water or air results
in unchanged
appearance
• Surface temperatures
are hot enough to melt
lead

7. Uranus
• Seventh planet
from the Sun
• Four times larger in
diameter than the
Earth
• Blue-green in color
• The tilt of the axis
causes sunlight for
42 years at a time

8. Venus
• Second planet from
the Sun
• Approximately the
same size as the
Earth
• Atmosphere
consists of
poisonous gases

9. Earth
• Third planet from
the Sun
• Largest of the four
inner planets
• Only planet where
life is known to
exist
• 70% of the surface
is covered by water

10. Mars
• Fourth planet from
the Sun
• Approximately half
the size of Earth
• Known as the Red
Planet
• Has four seasons
similar to Earth
• Resembles Earth more
than any other planet

11. Jupiter
• Fifth planet form
the Sun
• Largest planet in
our Solar System
• 1300 Earths could
fit inside Jupiter
• Doesn’t have a
surface; made of
gases

12. Saturn
• Sixth planet from
the Sun
• Second largest
planet
• 800 Earths could
fit inside Saturn
• Thousands of rings
are made up of ice
and rock fragments

13. Neptune
• Eighth planet form
the Sun
• Four times larger in
diameter than the
Earth
• Blue in color

14. Pluto
• Ninth planet from
the Sun
• Smallest of the
planets
• Coldest planet
• But now it is not
considered as a
planet.

15. Let’s compare the
planets to Earth

16. A day on :
Mercury = 3 Earth months
Venus = 117 Earth days
Mars = 41 minutes longer than
an Earth day
Jupiter = 10 Earth hours
Saturn = 10 ½ Earth hours
Uranus = 13 ½ Earth hours
Neptune = 18 Earth hours
Pluto = 7 Earth days

17. OUR SOLAR SYSTEM
• Our solar system consists of:
• 1 star , 8 planets, 63 (major) moons , asteroids, comets, meteoroids

18. The Orbital Speed of the Planets
• Mercury = 30 miles per second
• Venus = 22 miles per second
• Earth = 19 miles per second
• Mars = 15 miles per second
• Jupiter = 8 miles per second
• Saturn = 6 miles per second
• Uranus = 4.2 miles per second
• Neptune = 3.3 miles per second
• Pluto = 2.9 miles per second
Therefore, the further away from the Sun, the
slower the orbital speed.

19. The Earth has one Moon.
How many moons do the other planets have?
• Mercury - 0
• Venus - 0
• Mars - 2
• Jupiter - 17
• Saturn - 22
• Uranus - 15
• Neptune - 2
• Pluto - 1
• The Moon

20. It takes 365 days for Earth to revolve
around the Sun.
How long does it take the other planets?
• Mercury - 88 Earth days
• Venus - 225 Earth days
• Mars - about 2 Earth years
• Jupiter - 11.8 Earth years
• Saturn - 30 Earth years
• Uranus - 84 Earth years
• Neptune - 165 Earth years
• Pluto - 248 Earth years

21. “THANK YOU”