Life Cycle of a Star

Which stage of life is the sun currently in?

• White Dwarf

• Planetary Nebula

• Main Sequence

• Red Giant

Tags

NGSS.HS-ESS1-3

NGSS.HS-ESS1-1

What is the name of the cosmic cloud of dust and gas that is the first stage in the birth of a star?

• Protostar

• Spiral Galaxy

• Quasar

• Stellar Nebula

A stellar nebula will eventually condense into a hot ball of mostly hydrogen called a __________. At this point, nuclear fusion has not yet started but it will soon.

• Protostar

• White Dwarf

• Brown Dwarf

• Main Sequence

In a low-medium mass star, at the end of the red giant stage, the red giant's atmosphere expands outward to create a...

• White Dwarf

• Planetary Nebula

• Supernova

• Neutron Star

In a low-medium mass star, after the end of the red giant phase, a hot inner core of the star is left over. This core is a called a __________. There is no longer nuclear fusion happening at this stage.

• White Dwarf

• Planetary Nebula

• Supernova

• Neutron Star

In a high mass star, at the end of the red giant phase, the gravity causes the star to rapidly collapse. This collapse causes a massive explosion called a __________

• White Dwarf

• Planetary Nebula

• Supernova

• Neutron Star

Tags

NGSS.HS-ESS1-3

In a very high mass star, a supernova triggers the formation of a __________ which has a gravitational pull so strong that even light cannot escape.

• White Dwarf

• Neutron Star

• Stellar Nebula

• Black Hole

Tags

NGSS.HS-ESS1-3

Which star is likely to be the hottest? Use the H-R diagram

• Type B Star

• White Dwarf

• Red Giant

• Type G Star (Sun)

Which is one of the heaviest element found in a red giant star?

• Nitrogen (N)

• Iron (Fe)

• Sulfur (S)

• Magnesium (Mg)

Tags

NGSS.HS-ESS1-3

Elements heavier than iron are not formed in Main Sequence or Red Giant Stars. Where are heavier elements like silver, gold, and lead formed?

• White Dwarfs

• Stellar Nebulae

• Neutron Stars

• Supernovae

Tags

NGSS.HS-ESS1-3