Life Cycle
Stars begin there life as what
Stars begin their lives a clouds of dust and gas called nebula's
All stars live by fusing what two elements
Hydrogen and Helium
Stars begin their lives as part of a ______
Nebula
Death happens when the star begins to run out of ____
Fuel
Outer layers expand to become a _____
Red Giant
A young star is called a _____
Protostar
Helium fuses with what to make oxygen
Carbon
____ pulls the gas and dust together
Gravity
After they run out of fuel, they become Red ___ ___
Red Super Giants
Outer layers float into space creating a what
A stars life span depends on its ______
Size
Stars create ____ of the elements on the periodic table
ALL
A mature star gives of what
Light and Heat
Thy may suddenly explode. What is that called?
A Supernova
The blue-white core of the star cools to become a _____ _____
White Dwarf
Smaller stars will live on for ______
Billions Of Years
At higher ___and ______ heavier elements can form
Temperature and Pressure
The more mass a star has, the ___ it burns out
Faster
Some materials may end up forming a ___
Nebula
Over billions of years, it cools even more to become a ___ ___
Black Dwarf
The larger the star, the _____ it burns it fuel
Quicker
Two silicon atoms fuse to make ____
Iron
A star is born when____ gas and dust become so hot that ____ _____starts
Contracting
Necular fusion
The ____ of the core may form a _____ _____
Remains
Neutron Star
When any type of star runs out of fuel, it will ___
Die