Life Cycle of a Star

What is the first stage of the life cycle of a star for all stars?

• nebula
• protostar
• main-sequence
• red giant

This is a young star that glows as gravity brings it together

• Nebula
• Protostar
• Main-sequence star
• Red giant

In this stage, a star spends most of its life. Hydrogen is fused into helium at a temperature of millions of degrees.

• nebula
• protostar
• main-sequence
• supergiant

Low mass stars expand into what after using up the hydrogen in their core

• red giants
• supergiants
• white dwarfs
• protostars

This is a high mass star that is expanding and using energy at a fantastic rate

• Red giant
• Supergiant
• White dwarf
• Supernova

A low mass star ends its life as a 

• Supernova
• Black hole
• White dwarf
• Nebula

This stage is when a high mass star explodes

• Supergiant
• Red giant
• Supernova
• Black hole

This stage is made by densely packed neutrons and sometimes spins and blinks and is called a pulsar

• Supernova
• White dwarf
• Black hole
• Neutron star

This is released from a red giant star when the star can't hold on to its outer layer

• Supernova
• White dwarf
• Black hole
• Planetary Nebula

When a star's gravitational pull is so strong that not even light can escape, it's called a what?

• Black hole
• Supernova
• White dwarf
• Nebula