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43 Cards in this Set

  • Front
  • Back
Order of the planets (starting at closest to the Sun)
MERCURY, VENUS, EARTH, MARS, JUPITER, SATURN, URANUS, NEPTUNE, PLUTO
smallest planet
PLUTO
largest planet
JUPITER
terrestrial planets
MERCURY, VENUS, EARTH, MARS
jovian planets
JUPITER, SATURN, URANUS, NEPTUNE
planets that have solid surfaces
MERCURY, VENUS, EARTH, MARS
planets that are primarily gaseous
JUPITER, SATURN, URANUS, NEPTUNE
number of planets in the Solar System
9
number of stars in the Solar System
1
objects in the Solar System known by ancient astronomers
MERCURY, VENUS, EARTH, MARS, JUPITER, SATURN, MOON, COMETS, METEORS
objects in the Kuiper Belt
COMETS
planets with greater densities
TERRESTRIAL
planets with lesser densities
JOVIAN
planets with "retrograde" rotation
VENUS, URANUS, PLUTO
Earth's sister planet
VENUS
Uranus' twin
NEPTUNE
planet with a different plane of orbit
PLUTO
general mass of terrestrial planets
SMALL
orbital spacing of terrestrial planets
CLOSE TOGETHER
general rotational velocity of terrestrial planets
SLOW
magnetic field strength of terrestrial planets
LOW
average number of moons with terrestrial planets
FEW/NONE
rings on terrestrial planets
NONE
general mass of jovian planets
HIGH
rings on jovian planets
FEW/MANY
magnetic field strength of Jovian planets
HIGH
average number of moons with jovian planets
MANY
orbital spacing of Jovian planets
INCREASINGLY FAR APART
general rotational velocity of Jovian planets
FAST
only planet with oxygen in atmosphere
EARTH
only planet with liquid water on surface
EARTH
which are bigger, meteors or asteroids?
ASTEROIDS
location of asteroid belt
BETWEEN MARS AND JUPITER
remnants of broken up comets
METEORS
generally eccentricity of planetary orbits
LOW
eccentricity of comet orbits
HIGH
produce craters
METEOROIDS (meteors that have passed through the atmosphere)
location of the Kuiper Belt
OUTSIDE NEPTUNE'S ORBIT
location of Oort Cloud
OUTER EDGES OF SOLAR SYSTEM
objects in Oort Cloud
LIKELY COMETS
theory for Solar System formation
CONDENSATION THEORY
planet with highly tilted axis
URANUS
reasons why Pluto is possibly NOT a planet
eccentric orbit, very small, rocky even though outer