There are currently __ planets.
8
Pluto is now considered a what type of planet?
Dwarf planet
What are the surface shaping processes? (7)
Meteor, comet, and asteroidal impactvolcanismcrustal displacement-faulting and foldingmass wastingfluid flow (water or other liquid, if present)WindIce deformation
What is the Moon's original curst made up of?
Anorthosite/Feldspar
The young craters have-
rays.
What planet is closet to the sun?
Mercury
What is Mercury's diameter?
4880 km
The mission in ____ passed Mercury three times and took pictures of the same side.
1974
What is Venus' radius?
12,120 km
Why can we not see the surface of Venus with a telescope?
It is covered with clouds
What planet is closest to Earth's size?
Venus
If Venus did have tectonic plates it would have one major-
rift zone.
Venus has about __ craters they are spaced our from each other.
6
Venus' atmosphere is comprised of what?
CO2 and SO2
Earth is the only planet that have an atmosphere that is -
Oxygen rich with an Nitrogen atmosphere
What is the Earth's radius?
6370 km
What is Mars' diameter?
6792 km
What makes Mars a reddish color?
Hematite
Mars' poles change from _____ to _____, because of _________ between the North and the South.
Summer, Winter, vapor exchange
Mars has the biggest volcano in the solar system. What type of volcano is it?
Shield volcano
How many moons does Mars have? And what are their names?
2, Phobos and Demos
Beyond Mars is an -
asteroid belt
Asteroids are _____ planets
minor
What is Jupiter's diameter?
143,000 km
Does Jupiter have a ring?
Yes, a very faint one.
How many satellites does Jupiter have?
at least 63.
Name the 4 largest moons of Jupiter or the Galilean Moons.
Io, Europa, Ganymede, and Callisto
How much of Io is melted?
90%
Of Jupiter's Galilean Moons which two are highly cratered and have a ice and rock mix?
Ganymede and Callisto
The reason for color differences on planets and moons such as Io (Jupiter's moon) and Neptune is because of -
temperature differences.
Io is manly made up of -
sulfur
What is Saturn's diameter?
120,660 km
What are the two satellites called that keep Saturn's F ring in place?
Shepherds
What is Saturn's largest satellite?
Titan
What type of atmosphere does Titan have?
Methane
What is Uranus' diameter?
51,120 km
How many satellites does Uranus have?
27
Does Uranus have a ring system?
Yes.
What is Neptune's diameter?
49, 500 km
Neptune has __ satellites.
13
Neptune's rings are ____ (size)
very small
Neptune's major moon is _____, that has an icy surface.
Triton
Name the Dwarf Planets. (3)
Ceres, Pluto, Eris
Ceres originally came from -
an asteroid (minor planet) in the Mars-Saturn asteroid belt
Eris is ___% more massive than Pluto
27%
Trans-Neptunian refers to the area -
beyond Pluto
What is Pluto's largest moon?
Charon
Comets are what and come from?
icy and dirt bodies that are in liquid form, originally from beyond Pluto's orbit.
Comets have ____ tails. Which way do the tails face?
2 or 3; one from the orbit and the other is being pushed away from the sun.
What are the three types of meteorites?
iron, stony iron, and stony