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unit 3

QuestionAnswer
solar system sun and everything orbiting it
heliocentric sun-centered model
geocentric Earth-centered model
parallax shift in position when viewed differentl
gravity force of attraction
orbit path around something
aphelion farthest from sun
perihelion closest to sun
centripetal force inward force keeping orbit
solar nebula cloud that formed the solar system
planetesimal small body forming planets
nuclear fusion energy from atoms joining
sunspot dark cool spot on sun
solar flare burst of energy from sun
terrestrial planet loop of glowing gas from sun
terrestrial planet rocky planet (like Earth)
Astronomical unit Earth–sun distance
Gas giant large gas planet
Planetary ring ring of particles around planet
dwarf planet small round object orbiting sun
Kuiper Belt region beyond Neptune
Kuiper Belt object object in that region
Comet icy object with tail
Oort cloud distant cloud of comets
Asteroid rocky space object
meteoroid small space rock
Meteor burning meteoroid in atmosphere
Meteorite rock that hits Earth
Created by: davi vasques
 

 



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