life cycle of stars

The difference between stars and our sun is

• stars are a great distance away

• stars Do not produce heat.

• stars Are very small

• stars are A different color

The material to form a star comes from

• Black holes

• Nubes

• neutron clouds

• nebula

Tags

NGSS.HS-ESS1-3

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

NGSS.HS-ESS1-3

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

What do main sequence stars use for nuclear fusion?

• Oxygen

• Hydrogen

• Carbon

• Iron

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Our sun is currently in what star stage?

• Protostar

• Nebula

• Main Sequence

• Red Giant

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

______ is a force that causes gas and dust particles to come together in a nebula.

• nuclear fusion

• gravity

• hydrogen

• friction

Tags

NGSS.HS-PS2-4

Stars die because

• They don't have materials for nuclear fusion

• Gravity pulls them apart

• The stars collide.

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