The sun and all of the planets and other bodies that travels around it.

Describes something that uses Earth as the reference point.

An apparent shift in the position of an object when viewed different locations

A force of attraction between objects that is due to their masses.

The path that a body follows as it travels around another body in space.

In the orbit of a planet or other body in the solar system, the point that is fartherest from the sun.

The point in the orbit of a planet at which the planet is closest to the sun.

The inward force required to keep a particale or an object moving in a circular path

A rotating cloud of gas and dust from which the sun and planets formed.

A small body from which a planet originated in the early stages of development.

One of the highly dense planets nearest to the sun; Mercury, Venus, Mars, and Earth.

The average distance between Earth and sun; approximately 150 million kilometers symbol, Au.

A planet that has a deep, massive atmosphere, such as Jupiter, Saturn, Uranus, or Neptune.

A disk of matter that encircles a planet and consists of numerous particales in orbit, ranging in size from dust grains up to objects tens of meters across.

A celestial body that the sun, is round because of its own gravity, but has not cleared its orbital path.

One of the hundreds or thousands of minor planet- sized objects that orbit the sun in flat belt beyond Neptune's orbit

A small body that gives off gas and dust as it passes closes to the sun; a typical comet moves in an elliptical orbit around the sun and is made of dust and frozen gases.

A spherical region that surrounds the the solar system, that extends from the Kuiper Belt to almost halfway to the nearest star, and that contains billions of comets.

A small, rocky objects that orbits the sun; most asteroids are located in a band between the orbits of Mars and Jupiter.

A relatively small, rocky body that travels through space.

A bright streak of light that results when a meteoroid burns up in Earth's atmosphere.

A meteoroid that reaches Earth surface without burning up completely.

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unit 3 vocab

Question	Answer
solar system	The sun and all of the planets and other bodies that travels around it.
heliocentric	sun centered
geocentric	Describes something that uses Earth as the reference point.
pararllax	An apparent shift in the position of an object when viewed different locations
gravity	A force of attraction between objects that is due to their masses.
orbit	The path that a body follows as it travels around another body in space.
aphelion	In the orbit of a planet or other body in the solar system, the point that is fartherest from the sun.
perhelion	The point in the orbit of a planet at which the planet is closest to the sun.
centripetal force	The inward force required to keep a particale or an object moving in a circular path
solar nebula	A rotating cloud of gas and dust from which the sun and planets formed.
planetesimal	A small body from which a planet originated in the early stages of development.
terrestrial planet	One of the highly dense planets nearest to the sun; Mercury, Venus, Mars, and Earth.
astronomical unit	The average distance between Earth and sun; approximately 150 million kilometers symbol, Au.
gas giant	A planet that has a deep, massive atmosphere, such as Jupiter, Saturn, Uranus, or Neptune.
planetary ring	A disk of matter that encircles a planet and consists of numerous particales in orbit, ranging in size from dust grains up to objects tens of meters across.
dwarf planet	A celestial body that the sun, is round because of its own gravity, but has not cleared its orbital path.
kupier belt object	One of the hundreds or thousands of minor planet- sized objects that orbit the sun in flat belt beyond Neptune's orbit
comet	A small body that gives off gas and dust as it passes closes to the sun; a typical comet moves in an elliptical orbit around the sun and is made of dust and frozen gases.
Ooort cloud	A spherical region that surrounds the the solar system, that extends from the Kuiper Belt to almost halfway to the nearest star, and that contains billions of comets.
asteroid	A small, rocky objects that orbits the sun; most asteroids are located in a band between the orbits of Mars and Jupiter.
meteroid	A relatively small, rocky body that travels through space.
meteor	A bright streak of light that results when a meteoroid burns up in Earth's atmosphere.
meteorite	A meteoroid that reaches Earth surface without burning up completely.

Created by: Aydan Napier

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