The Life Cycle of the Stars

A big cloud of dust and gas where all

stars begin their life cycle is called a

(a)  

This result when a High Mass Star

explodes and releases enormous amounts of energy?

(a)  

In about 5 billion years, our sun will run out of hydrogen and grow 100 times its size and engulf the inner planets —including Earth. In this next stage of our sun's lifecycle it will become a

(a)  

Tags

NGSS.HS-ESS1-3

What color are the hottest stars?

(a)  

Answer explanation

Any star that has three or more times as much mass as the sun will tend to look blue to our eyes. Therefore, the high temperature of blue stars, coupled with their high luminosity, means that they're constantly blasting out huge amounts of energy into space. As a consequence they burn through all their fuel very quickly.

What is the correct

order of the life cycle of the stars?

• Planetary Nebula

• Nuclear Fusion has occurred and the newly formed star is in this phase of its life cycle. 

  
  

• Protostar

• As a result of accretion, a very young star that is still in the process of formation. NUclear Fussion has not began.

  
  

• Nebula

• In the end, the Star’s gravity can no longer contain the outer layers of the Red Giant and the star ejects these layers into space in the form of an ionized gas that glows bright. his glowing gas and debris are called a his glowing gas and debris are called a ?
  

• Red Giant

• A large interstellar cloud of gas and dust in space that is composed mostly of hydrogen and helium

• Main Sequence Star

• When hydrogen fusion can no longer take place inside the core of a medium to low mass star and the increased internal gravity collapse, the star is in this phase of it lifecycle.

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

When a supernova collapses, it can

squeeze electrons and protons together

into which type of star?

(a)  

Match the following

• White Dwarf

• A Black Hole can form is this is massive enough.

  
  

• Neutron Star

• A medium-star star that is at the end of its lifecycle and it can no longer be seen.

• Black Dwarf

• When an extremely large star explodes violently it becomes a?

• Black Hole

• The cooling core of a Red Giant is called a

• Supernova

• Exerts such strong gravitational forces that not even ligh can escape

The biggest most massive stars in the

universe are?

(a)  

Using the words “energy, Hydrogen-3, Helium, neutron, and Hydrogen-2”, briefly describe the process of nuclear fusion.

(a)  

Tags

NGSS.HS-PS1-8

The ejected outer shell of gas formed

by an aging star is called a(n)?

(a)