Lane-Science Test

Large, high mass stars are brighter than small, low mass stars

• True

• False

What are all main sequence stars fusing into helium?

• helium

• mass

• oxygen

• hydrogen

What happens when a star runs out of fusion fuel?

• they die

• they become bigger

• their structure changes and they move to a different part of the H-R diagram

What type of stars are the remains of low-mass and average size stars when they die?

• Giants

• Supergiants

• Blue stars

• White Dwarfs

On the H-R Scale, temperature decreases from....

• right to left

• top to bottom

• left to right

What does the H-R Diagram scatter plot show?

• The relationship between a star's surface temperature and luminosity

• The relationship of a star's hydrogen fuel and helium

What trends does the H-R Graph show?

• blue, yellow, white, orange, and red

• hydrogen fuel, helium, mass and structure

• stars' mass, luminosity, temperature, lifespan, fusion fuel, and how it will die

Stars become Supergiants when they run out of what?

• mass and fusion fuel

• high temperatures and helium

• hydrogen fuel and start fusing helium

Supergiant stars have so much fuel at very high temperatures that their what runs out.

• oxygen

• temperature

• fuel

What are the colors in order on the H-R Diagram?

• red, orange, yellow, white, blue

• blue, white, yellow, orange, red

• orange, yellow, red, blue, white

• yellow, white, blue, orange, red