Planets
The third planet from the sun known for supporting life and having tectonic plates/activity. Has one moon but no rings.
Earth
The first planet from the sun known for being small, having extreme temperatures, and having no life, moons, or rings.
Mercury
the four inner planets that are dense, rocky, and solid
Terrestrial planets
the four outer planets that are very large with gas or liquid surfaces
Gas giant planets
one year on Mars, equivalent to 687 Earth days
Martian year
The second planet from the sun, known for being the volcano capital of the solar system and having a backward spin on its axis.
Venus
The fifth planet from the sun known for being the largest, having 2 faint rings, and over 60 moons
Jupiter
a planetwide system of cliffs
scarp
a form of hydrogen that has properties of both a liquid and a metal, only found under high pressure
liquid metallic hydrogen
One year on jupiter; equivalent to 12 years on Earth
Jovian year
The fourth planet from the sun nicknamed the red planet. Has the most moons of any inner planet and is the target of much space exploration.
Mars
The seventh planet from the sun
Uranus
the names of mars' moons
phobos and deimos
high, cool, light-colored clouds that rise
zones
One year on Uranus; equivalent to 84 years on Earth
Uranian year
The 6th planet from the sun with the most elaborate ring system and many moons
Saturn
Why is Pluto not a planet?
a space probe launched in 1977 by NASA to study the outer planets and beyond
Voyager 2
low, warm, dark-colored clouds that sink
belts
One day on jupiter; equivalent to 10 hours on Earth
Jovian day
The eighth planet from the sun that is very similar to Uranus except for its notable zones and belts
Neptune
Name 3 criteria that qualify a space object as a planet
a planet must orbit a star, have cleared its path of orbit, and have enough gravity to pull itself into a sphere
an international space research probe sent to study and orbit Saturn for 20 years
Cassini
one year on Neptune; equivalent to 165 years on Earth
Neptunian year
One day on Neptune; equivalent to 16 hours on Earth
Neptunian day