stars
outer layers expand to become a...
red giant
a star is a ball of...
plasma
oxygen is made of...
helium and carbon dioxide
when a star explodes it becomes...
what is magnitude?
brightness
a stars life begins as a...
nebulas
----------- occur in stars
nuclear reactions
silicon is made of
carbon dioxide and oxygen
what is a protostar?
its when gas clouds condenses into a dense region
classes/types of colors a star can have (oh be a fine girl, kiss me)
what is it called when a red giant gets bigger?
a red supergiant
------- from the nuclear reactions is released as electromagnetic radiation
energy
what do 2 silicon atoms make when they fuse together?
iron
they're main sequence may last only ...
few hundred thousand years
the color of the star indicates...
temperture
when a white dwarf is in its place what is surrounding it
gas from the star it was
a star is a ball of plasma that is held together by its own...
gravity
at higher temperatures and pressures, heavier ------ can form
elements
life span of a star depends on its...
size
blue stars are------ and red stars are-----
1. hotter 2.cooler
how many colors can be in a star?
only a few
The----that-----and----the planets in a system
objects, heat, light
if smaller stars are at the beginning of their life, where are bigger stars in their life?
the end
when white dwarfs cool down they are
black dwarfs
apparent magnitude is how-------- a star appears from earth
bright