Life Cycle of Stars

When nebula is big and hot enough is collapses on itself and ...................... is made

• white dwarf

• supernova

• protostar

• planetary nebula

Hotter stars appear to be

• red

• blue

• yellow

• green

A gigantic explosion that causes the death of a large star is called

• pulsar
• red giant 
• supernova
• black hole

_________ is the force that causes dust particles to stick together in a nebula

• Fusion

• Fission

• Gravity

• Nuclear

All stars begin their life as a

• Main Sequence

• Nebula

• Protostar

• Black Dwarf

A medium-mass star like our sun is expected to live for __________ years.

• 10 Billion
• 10 Thousand
• 10 Million
• 10 trillion

The color of a star is determined by it’s

• size

• Temperature

• Composition

• distance from earth

A star is born when it begins...

• nuclear fusion
• nuclear abrasion
• chemical reaction
• nuclear fission

Larger stars (stars with more mass) have a ___________ life cycle than smaller stars.

• Longer Life span

• Shorter Life span

The stage after the main sequence star:

• red giant

• nebula

• white dwarf

• black dwarf