Vast areas filled with very cold gas & dust between stars is known as

• one big empty area in space.

• "cosmic fluff."

• the interstellar medium.

• the interstellar void.

Interstellar medium consists of _____________________________.

• Dust only

• Gas only

• Planets

• Gas and Dust

• Planets and Gas

Stars are formed in a large cloud of gas and dust called a

• cumulonimbus cloud
• nebula
• neutron star
• black hole

A cloud of gas that has been excited by light from a nearby star is called ___

• a reflection nebula

• an emission nebula

• a lit nebula

• a glowing nebula

In an emission nebula, what is the predominant color of the glow from hydrogen?

• red

• yellow

• blue

• green

Dust clouds that reflect the light of nearby bright massive stars are called ___

• mirror nebulae

• emission nebulae

• reflection nebulae

• excited nebulae

the most common gasses (in order ) are

• Carbon, Iron, hydrogen

• Hydrogen, carbon, helium

• helium , iron, hydrogen

• hydrogen, helium, carbon

if the density of a dust cloud is so small, why can it obscure the light from a star?

• the clouds are so big

• the dust is big

• light is easy to block

• the density is greater

What is so special about giant molecular clouds?

• they are so huge

• they are so rare

• they are the birthplace of stars and planets

• they are red

Tags

NGSS.HS-ESS1-3

What is interesting about interstellar molecules?

• they they can form in space

• that they can be organic

• they can be complex

• all of the answers are correct