Astronomy Vocabulary- Unit 7B

a property of matter by which it remains at rest or in uniform motion in the same straight line unless acted upon by some external force.

• Gravity

• Galaxy

• Inertia

• Quark

Tags

NGSS.MS-PS2-1

NGSS.MS-PS2-2

All of the existing matter and space considered as a whole.

• Galaxy

• Universe

• Nebula

• Quasar

Tags

NGSS.HS-ESS1-2

the universal force of attraction acting between all matter. It pulls all objects that have mass towards each other.

• Inertia

• Momentum

• Gravity

• Acceleration

Tags

NGSS.MS-PS2-4

NGSS.MS-PS2-5

A system of planets that revolve around a central star.

• Galaxy

• Universe

• Solar system

• Oort Cloud

Tags

NGSS.MS-ESS1-1

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

A small, rocky, object that orbits the sun, usually in a band between the orbits of Mars and Jupiter. They are too small to hold an atmosphere in place.

• Meteor

• Meteoroid

• Asteroid

• Comet

A huge collection of stars, dust, and gas held together by gravity.

• Nebula

• Universe

• Solar system

• Galaxy

Tags

NGSS.MS-ESS1-2

An Earth-centered model of the universe, that says Earth is in the middle of the universe and objects revolve around Earth

• Geocentric

• Heliocentric

• Geologic

• Hale-Bopp

Tags

NGSS.MS-ESS1-1

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

• Asteroid

• Meteor

• Comet

• Meteorite

The theory that states that the universe began with a tremendous explosion about 13.7 billion years ago.

• Oort Theory

• Supercollider Theory

• Big Bang

• The Explosive Theory

Tags

NGSS.HS-ESS1-2

A small body of ice, rock, and cosmic dust that follows an elliptical orbit around the sun

• Comet

• Meteor

• Meteoroid

• Asteroid

Tags

NGSS.MS-ESS1-3