Life Cycle of Stars Vocabulary

sun is currently in what star stage?

• Protostar

• Nebula

• Main Sequence

• Red Giant

Tags

NGSS.HS-ESS1-1

At 15,000 degrees Celsius, hydrogen atoms unite to form helium atoms and energy is released in a process called

• supernova

• pulsar

• nuclear fusion

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

NGSS.HS-PS1-8

A star is formed when:

• nuclear fusion begins

• a nebula becomes a protostar

• a supernova occurs

• All hydrogen is changed to helium

Tags

NGSS.HS-ESS1-1

The last phase of our sun with no nuclear fusion:

• White Dwarf

• Supernova

• Red Supergiant

• Black Hole

Tags

NGSS.HS-ESS1-1

A star that has used all its hydrogen, expands and now fuses helium to carbon and oxygen

• Neutron Star

• White Dwarf

• Red Giant Star

• Black Hole

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Old stars can form new stars because

• A supernove explosion creates nebula

• A big star explodes into smaller stars

• A black hole takes light from old stars and gives it to new stars

Tags

NGSS.HS-ESS1-3

The material to form a star comes from

• Black holes

• Nubes

• neutron clouds

• nebula

Tags

NGSS.HS-ESS1-3

Shown as number 1 on the diagram. All stars begin life in the same way forming from a cloud of dust and gas, also known as a ...

• Stellar nebula

• Planetary nebula

• Massive star

• Black hole

Shown as number 7 on the diagram, this is a powerful and luminous stellar explosion. This event occurs during the last stellar evolutionary stages when a massive star is triggered into runaway nuclear fusion. It is known as a ....

• Supernova

• Stella nebula

• Big Bang

• Black hole

Tags

NGSS.HS-ESS1-3

A star's lifecycle is determined by its ....

• Mass

• Temperature

• Brightness

• Luminosity

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3