2.  How many planets are there?
 7
8
9

3.  Which planet is closest to the sun?
Earth
Neptune
Mercury

5.  Closest and smallest
planet to the sun
 The orbit period is 88
days
 427 degrees during the
day
 Mercury is often visible
with binoculars or even the unaided eye

6.  The orbit period is 248
days
Venus is only slightly smaller
than Earth
 Brightest object in the sky
apart from the sun and
moon

7.  Only planet with living
organisms
 Earth has only one
natural satellite which
is the moon
 71 Percent of the Earth's
surface is covered with
water

8.  Also known as the red
planet
 Mars has a very thin
atmosphere composed
mostly of the tiny amount
of remaining carbon
dioxide
 When it is in the night time
sky, Mars is easily visible
with the unaided eye.

9.  Jupiter is about 90%
hydrogen and 10%
helium
 Jupiter has a diameter of
142, 750km
 Jupiter is the giant of the
solar system

10.  Saturn is surrounded
by rings which may be
composed of ice
 Saturn is 1426 million
km away from the sun
 Saturn take 29 ½ years
to make one complete
orbit of the sun

11.  Uranus has a total of
27 moons
 Uranus takes 84 years
to complete one orbit
 Scientists do not
exactly know what
causes the rings or
what they consist of

12.  Neptune is 150
million km away
from the sun
 Neptune has 13
moons
 Neptune takes 165
years to orbit the
sun