What is a star?
A star is a big ball made of gas, some are bigger and
Brighter than the son, stars have different color, size
Names, temperature and luminosity
Types of stars
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| Super Giant |
 |
| Giant |
 | |
Main sequence
White dwarf |
H-R Diagram
Is a diagram that Scientifics use to identify stars. How high or low luminosity and has to see how big or small
Nuclear fusion
The nuclear reaction of a star change hydrogen gas into helium
Molecule and create hot and energy. H + HE = hot and energy.
The life cycle of a star
The life cycle of a star show us how the stars born and die.
How does it change and when does it change
