Stars

Question 1

What is the life cycle of a star the same size as the sun?

Answer 1

Stars form when clouds of gases and dust (nebula) are condensed due to gravity.
When the energy from friction is generated enough to start nuclear fusion
Then the outward pressure caused by fusion tries to expand and the forces of gravity pull everything inwards creating a stable star.
Eventually the hydrogen begins to run out so the star swells to become a Red Giant. Now heavier elements are created in the core (up to iron)
Next the outer layer of the star is ejected leaving behind a hot dense core (a white dwarf)
The white dwarf then cools down and then becomes a black dwarf

Question 2

What is the life cycle of a star larger than the sun?

Answer 2

Stars form when clouds of gases and dust (nebula) are condensed due to gravity.
When the energy from friction is generated enough to start nuclear fusion
Then the outward pressure caused by fusion tries to expand and the forces of gravity pull everything inwards creating a stable star.
Eventually the hydrogen begins to run out so the star swells to become a Red Super Giant. Now heavier elements are created in the core (up to iron).
Eventually this will explode in a supernover forming elements heavier than iron to form new planets and stars.
It also leaves behind a very dense core called a neutron star or a black hole.