Astronomy
The Study of Stars, Galaxies,
Planets, and More
The Solar System
The Solar System
The Sun is a star.
Center of the
Solar System
109 x bigger
than Earth
~12,000°F
The Solar System also has
asteroids and comets.
Asteroids are rocky.
(They look like big potatoes.)
Comets have a lot of ice.
Comets also have rock, dust, and dirt.
They are called “Dirty Snowballs.”
Asteroids and comets orbit the Sun.
Comets have two tails!
They point away from the Sun.
Comets leave behind dust and dirt.
Shooting stars are called “meteors.”
Making a Comet
1)100ml
water
2) a little bit 3) crushed
of sand
dry ice
4) more
water
I will wear
gloves
when I
touch the
ice.