Select the ingredients for the formation of a star

• dust

• gravity

• red shift

• gas

The explosion of a supergiant star is also known as a ___________.

• Neutron star

• Nebula

• Blackhole

• Supernova

Tags

NGSS.HS-ESS1-3

All elements heavier than iron were formed in supernova explosions.

• True

• False

Tags

NGSS.HS-ESS1-3

Only the MOST massive stars will end their lives as a _________.

• Red supergiant

• Blackhole

• Neutron star

• Black dwarf

Tags

NGSS.HS-ESS1-3

Which of the following characteristics determines the life cycle of a star?

• Luminosity

• Temperature

• Color

• Mass

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Our sun is approximately...

• 2.3 bya

• 3.2 bya

• 4.6 bya

• 10.5 bya

Tags

NGSS.HS-ESS1-1

Our sun will begin it's death process in about ...

• 1 billion years

• 3.2 billion years

• 5.5 billion years

• 10 billion years

Tags

NGSS.HS-ESS1-1

Stars release energy during nuclear fusion when...

• Heavier elements undergo fusion into lighter elements

• Cosmic background radiation is absorbed

• Lighter elements undergo fusion into heavier elements

• Cosmic background radiation is released

Tags

NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Which event marks the birth of a star?

• formation of the planetary nebula

• fusion of hydrogen atoms into helium atoms

• formation of a photosphere

• instability in an interstellar cloud

Tags

NGSS.HS-ESS1-1

A dying star in the last stages of stellar evolution when no hydrogen remains in the core to fuel nuclear fusion.

• White Dwarf

• Black Hole

• Red Giant

• Neutron Star

Tags

NGSS.HS-ESS1-3