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

A unit of distance equal to the average distance between the Earth and sun about 150 million kilometers.

an object that orbits a star is largely enough to have become rounded by its own gravity and has cleared the area of its orbits.

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

One of the small asteriod like bodies that formed the building blocks of the planets.

The central region of the sun where nucfusion takes place.

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

A region of very tightly packed gas in the suns interior where energy is transferred mainly in the form of electromagnetic radiation.

the outermost layer of the suns interior.

the inner of the suns atmosphere that gives off its visible light.

The middle layer of the suns atmosphere.

The outer layer of the suns atmosphere.

A steam of electrically charged particles that emanate from the suns corona.

A dark area of gas on the suns surface that is cooler than surrounding gases.

A huge reddish loop of gas that protudes from the suns surface linking parts of sunspot regions.

An epurption of gas from the suns surface that occurs when the loops in sunspots regions suddenly connect.

The name often given four inner planets:Mercury,Venus,Earth,and mars

The trapping of heat near a planets surface by certain gases in the planets atmosphere.

The name often given to the other 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 asteroides are found.

A region where many small objects orbit the sun and that stretches from beyond the orbit of Neptune to about 100 times Earths 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.

A meteoroid that passes through the atmosphere and hits Earths surface.

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chapter 3 2-6

Question	Answer
solar system	the system consisting of the sun and the planets and the other objects that revolve around it.
astronomical unit	A unit of distance equal to the average distance between the Earth and sun about 150 million kilometers.
planet	an object that orbits a star is largely enough to have become rounded by its own gravity and has cleared the area of its orbits.
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 bodies that formed the building blocks of the planets.
core	The central region of the sun where nucfusion takes place.
nuclear fusion	The process in which two atomic nuclei combine to form a larger nucleus forming forming a heavier element and releasing huge amounts of energy. The process by which energy is produced by stars.
radiation zone	A region of very tightly packed gas in the suns interior where energy is transferred mainly in the form of electromagnetic radiation.
convection zone	the outermost layer of the suns interior.
photosphere	the inner of the suns atmosphere that gives off its visible light.
chromesphere	The middle layer of the suns atmosphere.
corona	The outer layer of the suns atmosphere.
solar wind	A steam of electrically charged particles that emanate from the suns corona.
sunspot	A dark area of gas on the suns surface that is cooler than surrounding gases.
prominence	A huge reddish loop of gas that protudes from the suns surface linking parts of sunspot regions.
solar flare	An epurption of gas from the suns surface that occurs when the loops in sunspots regions suddenly connect.
terrestrial planet	The name often given four inner planets:Mercury,Venus,Earth,and mars
greenhouse effect	The trapping of heat near a planets surface by certain gases in the planets atmosphere.
gas giant	The name often given to the other 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 asteroides are found.
kuiper belt	A region where many small objects orbit the sun and that stretches from beyond the orbit of Neptune to about 100 times Earths 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
asteriod	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.
meteorite	A meteoroid that passes through the atmosphere and hits Earths surface.

Created by: Piper J

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