Download Solar System Notes:

Solar System Notes:
Order of planets from the sun:
Mercury
Venus
Earth
Mars
Jupiter
Saturn
Uranus
Neptune
Pluto (dwarf planet)
Inner Planets (terrestrial planets):
Mercury
Venus
Earth
Mars
 Rocky Planets
 These planets are closer to the sun
 Mercury is the smallest planet and is the closest to the sun.
 Mars is slightly larger than Mercury
Outer Planets (Gas Giants):
Jupiter
Saturn
Uranus
Neptune
Pluto (dwarf planet)
Outer Planets con’t
 These planets are much father away from the sun.
 Made of gas, have many rings and moons
 An asteroid best separates the outer planets from the inner
planets.
 Jupiter is the largest planet.
 Pluto is now considered a dwarf planet
Crater:
 A crater is a large, bowl-shaped hole found in solid, rocky
surfaces
 Craters can be found on terrestrial planets, moons, and
asteroids.
 Two types of Craters:
o Some craters fare formed when material from within
the volcano blasted a hole in the top of it’s summit
 These are called volcanic craters
o Some craters are formed when meteoroids, asteroids,
or comets smash into the surface of a planet or moon.
 These are called impact craters
 The smaller the object that hits, the smaller the crater
 The larger the object that hits, that larger the crater
 The slower the speed of the impact the smaller the crater
 The faster the speed of the impact the larger the crater
 More craters on a surface tells us the older that area is
 Planets that have craters keep them due to
o No atmosphere
o No weather