Star Life Cycle
What is the largest star in our solar system?
The Sun
This is the starting point for all stars
Nebula
What is the name of the galaxy we live in?
The Milky Way
These are the two primary elements in a star
Hydrogen and helium
What is the phase between a nebula and a main sequence star?
Protostar
What factor determines how long a star exists?
Its mass
In what stellar layer does fusion occur?
the core
What is a lightyear?
When there is no hydrogen left to fuse, the star will enter this phase
Red Giant
What is evidence all over the universe of the big bang?
cosmic microwave background
What element is created from fusion?
Helium
The heat generated from the Sun travels to Earth by.... ?
What color are the hottest stars?
Blue
Which phase of a star's life can shine as brightly as an entire galaxy?
A supernova
What percentage of stars are considered main sequence?
90%
What is the force that pulls together all objects in the universe?
Gravity!
Why have we never discovered a black dwarf?
The universe isn't old enough yet
What color are the coldest stars?
Red
These are the areas of cooler gas on the Sun's surface
Sun spots
A photon