stars

Question 1

birth of a star

process

Answer 1

nebulae(clouds of dust&gas)→gravity pulls it together into clumps→cloud colapses into glowing ball of gas→temp increases→nuclei of H atoms fuse making He(nuclear fusion)→reaction causes chain reaction(heat+light)

Question 2

life of a star

life stages

Answer 2

Blue→White→Yellow(as ages)

because reactions slowe down, star cools down

young star=blue(hot)

Question 3

death of a star

Answer 3

hydrogen starts running out→other elements burn then give off more heat→star swells as surface cools~red

Question 4

death of a star

medium size

Answer 4

star swells~red giant→outer lauers form planetary nebula(dust of clouds)→core contracts to white dwarf~dead star

Question 5

death of a star

large size

Answer 5

turn yellow~red→red super giant→explodes into supernova→neutron star & black hole left behind

Question 6

neutron star

what is it

Answer 6

dense star

Question 7

black hole

what is it

Answer 7

object with large gravitational pull