2. The Sun is the star at the center of the Solar System.
It is a nearly perfect ball of hot plasma, heated to
incandescence by nuclear fusion reactions in its core,
radiating the energy mainly as light, ultraviolet, and infrared
radiation.
It is the most important source of energy for life on Earth..
Its surface temperature is 5,778 K.
Its rotation speed is 1.997 km/s
SUN
3. The Moon is Earth's only natural satellite. Together with
Earth it forms the Earth–Moon satellite system.
It is about one-quarter of Earth in diameter.
In the Solar System it is the fifth largest satellite, larger than
any of the known dwarf planets and the largest satellite of a
planet relative to the planet.
MOON
5. Mercury is the smallest planet the solar
system
Mercury is the planet nearest to the sun it
has no moons.
If you weigh 100 pounds on earth ,you
would only weigh 37 pounds on mercury.
It takes less than 87.97 earth days for
mercury to orbit around the sun.
1 days last about 180earth days.
MERCURY
6. Venus is second planet from the sun
,Brightest planet in solar system
Venus is known as earths twin sister
because of its similar size and proximity to
each other.
Venus has a longer day than year.
It takes 243 days for Venus to make a
rotation.
Venus spins In a reverse gear
VENUS
7. Earth is the third planet from the sun and
the only astronomical object known to
harbor life.
Earth is also called blue planet
The earth is estimated to be 4.5 billions
years old.
It travels through space at 660,000 miles
per hour.
EARTH OUR (HOME)
8. Mars is the 4 closest planet to the sun . It
can easily seen from earth.
Mars is red because it is rusty. There is a
lot of iron in the soil, and the air on mars
has made it turn red
Mars orbit the sun every 687 the earth
days.
The martian “day” is about half a hour
longer than earth.
MARS
9. Jupiter is the largest planet in our solar
system.
Jupiter volume is large enough to contain
1,300 planets the size of earth.
Jupiter rotates faster than any planet in the
solar system . It rotates so quickly that the
days are only 10 hours ago.
But it takes 12 earth years for Jupiter to
complete an orbit around the sun .
If you weigh 100 pounds on earth , you
would weigh 264 pounds on Jupiter .
JUPITER
10. Saturn is the sixth planet from the Sun and
the second-largest in the Solar System,
after Jupiter.
It is a gas giant with an average radius of
about nine and a half times that of Earth
It has only one-eighth the average density
of Earth; however, with its larger volume,
Saturn is over 95 times more massive.
SATUR
N
11. Uranus is the seventh planet from the Sun.
Its name is a reference to the Greek god of the sky, Uranus,
who, according to Greek mythology, was the great-
grandfather of Ares, grandfather of Zeus and father of
Cronus.
It has the third-largest planetary radius and fourth-largest
planetary mass in the Solar System.
Uranus is the coldest planet in solar system .
It is known as ice giant .
URANUS
12. Neptune is the eighth planet from the Sun and the farthest
known solar planet.
In the Solar System, it is the fourth-largest planet by
diameter, the third-most-massive planet, and the densest
giant planet.
It is 17 times the mass of Earth, and slightly more massive
than its near-twin Uranus.
It goes around the sun once every 165 years .
It is known as ice giant .
NEPTUNE
13. An object in space that looks like a bright star with a tail
and that moves around the sun .
Comets are also leftover from when the universe was
mode.
All comets that have nucleus ,that is the ice , dust , and
rock in the comet.
When the comet approaches the sun , the solar energy
melts the ice and vaporize . The gas form the comet make
the tail
COMETS
14. Asteroids are small, rocky objects that
orbit the Sun.
Although asteroids orbit the Sun like
planets, they are much smaller than planets.
There are lots of asteroids in our solar
system.
Most of them are located in the main
asteroid belt – a region between the orbits of
Mars and Jupiter.
ASTEROIDS
15. A meteoroid is a small rocky or metallic body in
outer space.
Meteoroids are significantly smaller than asteroids,
and range in size from small grains to one-meter-
wide objects.
Objects smaller than this are classified as
micrometeoroids or space dust.
METEOROID
16. A meteor is a space rock—or meteoroid—that enters Earth's
atmosphere.
As the space rock falls toward Earth, the resistance—or drag—
of the air on the rock makes it extremely hot .
It is also called a shooting star.
METEOR
