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