the system consisting of the sun and the planets and other objects that revolve around it

a unit of distance equal to the average distance between the earth and the sun, about 150 million kilometers

an object they orbits a star, is large enough to have become rounded by its own gravity, and has cleared the area of its orbit

an object that orbits the sun and is spherical but has not cleared the area of its orbit

one of the small asteriod -like body that formed the building blocks of the planets

the central region of the sun, where nuclear fusion takes place

the process in which two atomic nuclei combine to form a larger nucleus, forming heavier element and releasing huge amounts of energy; the process by which energy is produced in stars

a region of very tightly packed gas in the sun's interior where energy is transferred mainly I the form of electromagnetic radioation

the outermost layer of the sun's interior

the inner layer of the sun's atmosphere that gives of its invisible light; the sun's surface

the middle layer of the sun's atmosphere

the outer layer of the sun's atmosphere

a stream of electrically charged particles the eliminate from the sun's corona

an area of dark gas on the sun's surface that is cooler than the surrounding gasses

a huge, reddish loop of gas that protrudes from the sun's surface, linking parts of sunspot regions

an eruption of gas from the sun's surface that occurs when the loops in the sunspot regions suddenly connect

the name often given to the four inner planets: Mercury, Venus, Earth, and Mars

the trapping of heat near a planet's surface by certain gasses in the planet's Atmosphere

the name often given to the outer planets, Jupiter, Saturn, Uranus, Neptune

a thin disk of small ice and rock particles surrounding a planet

the region of the solar system between the orbits of Mars and Jupiter, where many asteroids are found

a region where small objects orbit the sun and that stretches from beyond the orbit of Neptune to about 100 times earth's distance from the sun.

a spherical region of comets that surrounds the solar system

a loose collection of ice and dust that orbits the sun, typically in a long, narrow orbit

the fuzzy outer layer of a comet

the solid inner core of a comet

one of the rocky objects revolving around the sun that are too small and numerous to be considered planets

a chunk of rock or dust in space, generally smaller than an asteroid

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sci chapter 3

Term	Definition
solar system	the system consisting of the sun and the planets and other objects that revolve around it
astronomical unit	a unit of distance equal to the average distance between the earth and the sun, about 150 million kilometers
planet	an object they orbits a star, is large enough to have become rounded by its own gravity, and has cleared the area of its orbit
dwarf planet	an object that orbits the sun and is spherical but has not cleared the area of its orbit
planetesimal	one of the small asteriod -like body that formed the building blocks of the planets
core	the central region of the sun, where nuclear fusion takes place
nuclear fusion	the process in which two atomic nuclei combine to form a larger nucleus, forming heavier element and releasing huge amounts of energy; the process by which energy is produced in stars
radiation zone	a region of very tightly packed gas in the sun's interior where energy is transferred mainly I the form of electromagnetic radioation
convection zone	the outermost layer of the sun's interior
photosphere	the inner layer of the sun's atmosphere that gives of its invisible light; the sun's surface
chromosphere	the middle layer of the sun's atmosphere
corona	the outer layer of the sun's atmosphere
solar wind	a stream of electrically charged particles the eliminate from the sun's corona
sunspot	an area of dark gas on the sun's surface that is cooler than the surrounding gasses
prominence	a huge, reddish loop of gas that protrudes from the sun's surface, linking parts of sunspot regions
solar flare	an eruption of gas from the sun's surface that occurs when the loops in the sunspot regions suddenly connect
terrestrial planet	the name often given to the four inner planets: Mercury, Venus, Earth, and Mars
greenhouse effect	the trapping of heat near a planet's surface by certain gasses in the planet's Atmosphere
gas giant	the name often given to the outer planets, Jupiter, Saturn, Uranus, Neptune
ring	a thin disk of small ice and rock particles surrounding a planet
asteroid belt	the region of the solar system between the orbits of Mars and Jupiter, where many asteroids are found
Kuiper belt	a region where small objects orbit the sun and that stretches from beyond the orbit of Neptune to about 100 times earth's distance from the sun.
Oort cloud	a spherical region of comets that surrounds the solar system
comet	a loose collection of ice and dust that orbits the sun, typically in a long, narrow orbit
coma	the fuzzy outer layer of a comet
nucleus	the solid inner core of a comet
asteroid	one of the rocky objects revolving around the sun that are too small and numerous to be considered planets
meteoroid	a chunk of rock or dust in space, generally smaller than an asteroid
meteor
meteorite

Created by: user-1975227

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