Stars

Which star property determines a star's color?

• Size

• Distance

• Brightness

• Temperature

Which statement about the stars in the HR diagram is true?

• White Dwarfs are the coolest stars

• Red stars can be both hot and cool

• Blue stars can be big, but they are very cool

• Red giants are large, bright, and cool

The gasses in stars are:

• Hydrogen & Helium

• Oxygen & Nitrogen

• Atmosphere

What color is the hottest star?

• Red

• Yellow

• Blue

• White

What color is the coolest star?

• Red

• Yellow

• Blue

• White

Which is the correct order of stars from HOTTEST to COOLEST?

• blue, white, yellow, orange, red

• blue, yellow, white, orange, red

• red, white, yellow, orange, blue

• red, orange, yellow, white, blue

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

Our sun is what kind of star?

• Blue giant

• Red giant

• Main sequence

• White dwarf

Compared to a red giant star, a blue supergiant is...

• Hotter and brighter

• Hotter and not as bright

• Colder and brighter

• Colder and not as bright

Compared to a white dwarf, a red supergiant is...

• Hotter and brighter

• Hotter and not as bright

• Colder and brighter

• Colder and not as bright