Star Formation

How many stars are estimated to be in the universe?

• 10 million

• 150 million

• 100 billion

• 1 septillion

Where are stars born?

• Molecular Clouds

• Black holes

• Galaxies

• Planetary Systems

What is a "baby" star called?

• neostar

• infanstar

• protostar

• archistar

Tags

NGSS.HS-ESS1-3

Why do high-density pockets of gas form?

• High friction

• Low friction

• Hot temperatures

• Cold temperatures

What process fuels stars?

• Combustion

• Nuclear Fission

• Nuclear Fusion

• Combination

Tags

NGSS.HS-ESS1-1

Which element is converted to which element in a star's core?

• Iron>Hydrogen

• Hydrogen>Helium

• Carbon>Helium

• Helium>Hydrogen

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

What is the longest phase of a star's life?

• Main-sequence

• Protostar

• White Dwarf

• Red giant

What decides how a star dies?

• The temperature of the star

• The brightness of the star

• The mass of the star

• The age of the star

Tags

NGSS.HS-ESS1-1

What is the first stage low-mass stars go through when they begin to die?

• Black Hole

• Neutron Star

• White Dwarf

• Red Giant

What are the two possible outcomes of a High mass star's death?

• Quasar or White dwarf

• Supernova or Black hole

• Neutron star or Black hole
• White dwarf or Red giant