What is the theory that states the universe began from one point and has been expanding and cooling ever since?

• Apparent Magnitude

• Light year

• Big Bang Theory

• Galaxy

Tags

NGSS.HS-ESS1-2

Which of the following is not a type of galaxy?

• Irregular
• Triangular
• Spiral
• Elliptical 

The color of a star depends on its

• size
• temperature
• shape
• magnitude

Tags

NGSS.MS-ESS1-3

What color are the hottest stars?

• red
• yellow
• orange
• blue

What is a huge group of solar systems, stars, dust, and gas held together by gravity?

• protostar

• nebula

• black hole

• galaxy

Tags

NGSS.MS-ESS1-2

What does a light year measure?

• Temperature

• Distance

• Brightness

Tags

NGSS.MS-ESS1-3

A large sphere of gas which generates energy in its core and emits light, heat, and other radiation is a _____________.

• constellation

• asteroid

• star

• galaxy

Which word means the distance that light travels in one year?

• Astronomical Unit

• light year

• parsec

• kilometer

The Milky Way is a....

• spiral galaxy

• elliptical galaxy

• irregular galaxy

• star

What do we call space and all of the matter and energy in it - everything that exists?

• solar system

• galaxy

• universe

• the internet