Universe vocabulary

A theory that says the universe began as a small point that expanded rapidly about 13.8 billion years ago

• Milky Way Galaxy

• universe

• orbit

• Big Bang Theory

The Sun together with the group of planets and other celestial bodies that revolve around it that are held by its gravitational attraction

• Heliocentric model

• Galaxy

• Solar System

• universe

The galaxy in which the Sun and Earth are located

• Milky Way Galaxy

• Andromeda Galaxy

• Universe

• orbit

All space and the matter space contains

• galaxy

• astronomy

• orbit

• universe

Tags

NGSS.MS-ESS1-2

A large grouping of stars, planets, gas, and dust in space held together by gravity

• galaxy

• solar system

• astronomy

• astronomer

Tags

NGSS.MS-ESS1-2

The path one object takes as it revolves around another object in space

• solar system

• galaxy

• orbit

• geocentric model

Tags

NGSS.MS-ESS1-2

NGSS.MS-PS2-4

A scientist who studies objects in space, such as black holes, galaxies, moons, planets, stars, etc.

• astronomer

• geologist

• meteorologist

• archaeologist

Tags

NGSS.MS-ESS1-2

NGSS.MS-ESS1-3

NGSS.MS-PS2-4

The study of celestial objects, space, and the universe as a whole

• meteorology

• geology

• microbiology

• astronomy

A light year is the 

• distance that light travels in one year
• Speed at which light travels 

The average distance between the earth and the sun is the 

• astronomical unit 
• Light year

Tags

NGSS.MS-ESS1-3