universe

What is the name of the galaxy in which Earth is located?

• Big Band

• Milky Way

• Mars

• Universe

What type of galaxy is the Milky Way galaxy?

• 
• 
• 
• 

What is located in the middle of the Milky Way galaxy?

• a black hole

• Earth

• the Sun

• the Moon

Which of the following statements best describes a galaxy?

• A system of planets with an elliptical orbit

• A giant nuclear reactor held together by gravity

• A cloud that produces stars

• A system of gas, dust and billions of stars held together by gravity

A spiral galaxy looks like a --

• blob

• star

• pinwheel

• roller coaster

if the star and earth are moving toward each other, the star's light appears bluer → Blue shift

• True

• False

If a star and the earth are moving away from each other, the star's light appears redder → Blue shift

• True

• False

What is the component of the universe that is best described as a system of stars, gases, and dust held together by gravity.

• universe

• galaxy

• solar system

• planet

What is an interstellar cloud of dust and gases where stars can form?

• universe

• solar system

• galaxy

• nebula

What two elements mostly make up stars?

• Hydrogen and Oxygen

• Hydrogen and Helium

• Helium and Oxygen

• Hydrogen and Nitrogen