Unit 9 Stars Review

The main gases that burn within the sun are

• Oxygen and Nitrogen

• Hydrogen and Oxygen

• Neon and Sulfur

• Hydrogen and Helium

What color of star is the coolest?

• Red
• Yellow
• Blue
• White

What color of star is the hottest?

• Blue
• Red
• Yellow
• Orange

What is the name of the largest stars?

• Protostars
• Supergiants
• Red Giants
• Dwarf Stars

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

• Nebulas
• Protostars 
• Supernova
• Neutron Star

What is the name of the explosion at the death of a massive star?

• Supergiant
• Supernova
• Black Hole
• Nebula

The H-R diagram is a graph that shows the relationship between ______________ for stars. 

• temperature and color
• temperature and brightness
• brightness and color
• distance and brightness

All stars begin their life in a

• Main Sequence
• Nebula
• Protostar
• Black Dwarf

______ is a force that causes dust particles to stick together in a nebula.

• nuclear fusion
• gravity
• hydrogen
• friction

A ________ is an object so dense with so much gravity that even light cannot escape.

• neutron star
• white dwarf
• blackhole
• black dwarf