1. The Solar
System

2. What is our Solar System?
Our solar system is made up of:
● 1 star (the Sun)
● 8 planets
● 61 moons
● over 50,000 asteroids and
comets

3. The Sun
● Is a star (it looks much larger
than other stars because it is
a lot closer)
● Is the center of our Solar
System
● Contains nearly all of the
matter in the Solar System
● Provides Earth and (other
planets) with heat and light
● Life would not exist on Earth
without the sun

4. Mercury
● Closest planet to the sun
(58,000,000 km away)
● Very hot surface temperature
(425° C)
● Length of a Day:
58.67 Earth Days
● Length of a Year:
88 Earth Days

5. Venus
● Second planet from the Sun
(108,000,000 km away)
● Similar in size to Earth, and
has a thick atmosphere
● Length of a Day:
243 Earth Days
● Length of a Year:
225 Earth Days

6. Earth
● Third planet from the Sun
(150,000,000 km away)
● Has one moon, which orbits
the planet once every 29.5
days
● Only planet to have life (that
we know of) and liquid water
● Length of a Day:
24 hours
● Length of a Year:
365 Earth Days

7. Mars
● Fourth planet from the Sun
(228,000,000 km away)
● Has the largest volcano in the
Solar System
● Has a thin atmosphere, and
an ice cap containing frozen
water
● Length of a Day:
24.5 hours
● Length of a Year:
1.9 Earth Years

8. Jupiter
● Fifth planet from the Sun
(778,000,000 km away)
● Largest planet in the Solar System
(diameter of 143,000 km)
● Has a giant red spot (which is a
giant storm that never stops)
● Length of a Day:
10 hours
● Length of a Year:
11.9 Earth Years

9. Saturn
● Sixth planet from the Sun
(1,427,000,000 km away)
● Has a ring of dust and rocks
● Almost twice as far from the Sun
as Jupiter
● Length of a Day:
10.5 hours
● Length of a Year:
29.5 Earth Years

10. Uranus
● Seventh planet from the Sun
(2,869,000,000 km away)
● Its axis is tilted horizontally
(Rotates up and down instead of
sideways)
● About twice as far from the Sun as
Saturn
● Length of a Day:
17 hours
● Length of a Year:
84 Earth Years

11. Neptune
● Eighth planet from the Sun
(4,505,000,000 km away)
● Farthest planet from the Sun
● Has the largest moon in the Solar
System (Triton)
● Length of a Day:
16 hours
● Length of a Year:
165 Earth Years