Evolution of a Star

What color of star is the hottest?

• Blue
• Red
• Yellow
• Orange

What color of star is the coolest?

• Red
• Yellow
• Blue
• White

What is the name of the gas/dust clouds where all stars form?

• Nebulas
• Protostars 
• Supernova
• Neutron Star

The color of a star tells us its

• magnitude
• temperature
• size
• age

Galaxies are composed of 

• billions of stars
• a star and the planets that orbit around it
• all of the bodies and objects in space

Most stars are made of which gases?

• Hydrogen only
• Hydrogen and Lithium
• Hydrogen and Sodium
• Hydrogen and Helium

Our sun is currently in what star stage?

• Protostar
• Nebula
• Main Sequence
• Red Giant

After the main sequence, a high mass star becomes a

• black dwarf

• protostar

• red giant

• supergiant

After a supergiant, a high mass star explodes and forms a

• supernova
• red giant
• black hole
• planetary nebula

When a nebula heats up, a "baby" star forms in the middle. It is called a

• supernova
• supergiant
• white dwarf
• protostar