Star birth
A large cloud of gas, dust, and gas is what
Nebula
The protostar continues to condense, it what
heats up
What is a star
A object that heat and lights the planets in a system
How old is our sun
4.6 billion years old
All stars live by fusing hydrogen to make what
helium
A mature star gives off what and what
light and heat
Eventually, it reaches a critical mass and what begins
Nuclear fusions
A star is a ball of plasma held together by its own what
gravity
what phase is the sun in right now
average star
Helium fuses with carbon to make what
oxygen
The more mass of the star has, the _________ it burns out
faster
The life span of a star depends on its what
Size/mass
Energy from the what is released as electromagnetic radiation
nuclear reactions
What is the next stage of our sun
red giant
Carbon and oxygen fuse to make what
silicon
Stars begin there lives as part of a what
Nebula
What does a super red giant become
supernova
What is the coldest stars color
Red
How hot is our sun on its surface
9,941 degrees fahrenheit
Two silicon atoms fuse to make what
iron
What pulls the gas and dust together
Gravity
what does a red giant become
planetary nebula
What is the hottest stars color
Blue
What color is the sun at its hottest
yellow, red, orange
Eventually the star forms layers, like an onion, forming different elements in different what
layers