8th Stars & Galaxies

Label Part 3

• #3 Chromosphere
• #3 Radiation zone
• #3 Convection zone
• #3 Photosphere

A giant cloud of dust and gas that floats through space where protostars are born is a

• Nebula

• Galaxy

• Red Dwarf

• Supergiant

Label part 5

• #5 Chromosphere
• #5 Radiation zone
• #5 Convection zone
• #5 Photosphere

Which star has the lowest temperature?

• A
• B
• C
• D

The closest star to the sun is the...

• Sirius A
• Barnard's Star
• Luhman16
• Proxima Centauri

Which of these are not associated with the active Sun?

• Coronal Mass Ejections CME

• Prominences

• Solar Flares

• Granulation

Which statement describes the general relationship between the temperature and the luminosity of main sequence stars?

• As temperature decreases, luminosity increases
• As temperature decreases, luminosity remains the same.
• As temperature increases, luminosity increases.
• As temperature increases, luminosity remains the same.

What are galaxies held together by?

• Gravitational Attraction
• Stars
• Other galaxies
• Dust and Gas

The rare collapse and explosion of a dying star that can shine up to a billion times brighter than the sun for a brief time.

• Protostar

• Supernova

• Red Dwarf

• Giant Star

What characteristics are used to classify stars?

• Flammability, weight, and reactivity

• Temperature/color and brightness

• Conductivity, luster, and density

• Malleability, distance, and viscoscity