Astronomy Vocabulary

the sun and all of the planets and other bodies that travel around it

• Solar system

• Milky way

• galaxy

• space

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

the sum of all space, matter, and energy that exist, that have existed in the past, and that will exist in the future

• Milky Way

• Universe

• Galaxy

• solar system

a system of ideas that explains many related observations and is supported by a large body of evidence acquired through scientific investigation

• geocentric

• heliocentric

• theory

• beliefs

Tags

NGSS.HS-ESS1-2

In astronomy, this is a superseded description of the Universe with Earth at the center. Under this model, the Sun, Moon, stars, and planets all orbited Earth.

• Scientific Model

• Heliocentric Model

• Kepler Model

• Geocentric Model

A cosmological model in which the Sun is assumed to lie at or near a central point while the Earth and other bodies revolve around it. ... As a result, Ptolemy's (Earth-centered) system dominated scientific thought for some 1,400 years.

• Heliocentric model

• geocentric model

• Universal Model

• Ptolemy Model

a collection of stars, dust, and gas bound together by gravity

• Universe

• Galaxy

• Milky Way

• Space

any of the primary bodies that orbit the sun; a similar body that orbits another star

• Milky way

• solar system

• planets

• Moon, sun and stars

Tags

NGSS.MS-ESS1-3

a force of attraction between objects that is due to their masses and that decreases as the distance between the objects increases

• gravity

• forces of push and pull

• magnetism

Tags

NGSS.MS-PS2-4

means how big the planets are when compared to each other and the sun.

• relative vastness

• relative distance

• relative size

Tags

NGSS.MS-ESS1-3

means how far apart the planets are when compared to each other and the sun.

• relative distance

• relative size

• distance between planets theory