Solar System Test Flashcards
Name all 8 planets in our solar system starting with the closest to the Sun
Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
Terrestrial planets…
Mercury, Venus, Earth, Mars
Jovian planets…
Jupiter, Saturn, Uranus, Neptune
Terrestrial planets are also known as
inner planets
The largest Jovian planet is
Jupiter
Mars has a red hue because
covered with rust-like dust
The three dwarf planets are
Sedna, Orcus, and Quaoar
Terrestrial planets have a
rocky surface
Jovian planets have
low densities, rapid rotation, deep atmospheres rings, and lots of satellites, unlike terrestrial planets that do not.
The solar system is believed to have been formed
4.6 billion years ago
nebular hypothesis
the idea that the solar system developed from a spinning cloud of dust and gas
Uranus
Jovian planet which rotates on its side
comet
ball of ice and dust, probably remaining from the formation of the solar system
Ganymede
largest moon in the solar system; orbits Jupiter
Titan
Saturn’s moon with a diameter of 3,200 miles
Oort Cloud
region believed to be where comets originate
Kuiper Belt
region that surrounds and extends just beyond the orbit of Neptune where several dwarf planets reside
asteroid belt
The ring between the orbits of Mars and Jupiter that orbits the Sun and where Ceres resides
Triton
Neptune’s largest moon
The diameter of our own moon is
2159.1 mi/2100 mi
3475 km
Mercury is ___ the size of earth
1/3
Venus is ____ than earth
Slightly smaller
Mars is ___ of earth
Half the size of
Jupiter is ___ than earth
11 x bigger
Saturn is ___ than earth
9 x bigger
Uranus is ___ than earth
4 x bigger
Neptune is ___ than Uranus
Slightly smaller
Jupiter’s density
1.33 g/cm^3
Saturn’s density
0.69 g/cm^3
