Universe/Stars

All stars begin as a __________?

• giant
• black hole
• white dwarf
• nebula

Very hot stars are what color? 

• Blue
• Yellow
• Red
• Orange

What is the color of the coolest stars?

• blue
• Yellow
• Red
• Orange

Where are stars the most stable?

• Supergiant
• Main sequence
• White dwarf
• black dwarf

Put the stars in order from hottest to coolest.

• Blue, Red, White, Yellow, Orange, 
• Red, White, Yellow, Orange, Blue
• Blue, White, Yellow, Red, Orange
• Blue, White, Yellow, Orange, Red

Low-mass stars eventually collapse into what final star remnant?

• Black holes
• Neutron stars
• White dwarfs
• Nebulae

What is the term used for a cloud of gas and dust?

• gas giant
• solar dust
• solar cloud
• nebula

What is the process that occurs in the core of a star, like the sun, that produces energy?

• fission
• fusion
• decay
• convection

What stage of stellar evolution is the sun experiencing at this time?

• protostar
• main-sequence
• giant
• white dwarf

What is the stage before this black hole?

• Supernova
• Neutron star
• white dwarf
• black dwarf