HR Diagram

What characteristics are used to classify stars?

• Flammability, weight, and reactivity

• Temperature/color and brightness

• Conductivity, luster, and density

• Malleability, distance, and viscoscity

Tags

NGSS.HS-ESS1-3

In the diagram given, what happens as we move to the left?

• Stars Get Larger
• Stars get Colder
• Stars get hotter

Tags

NGSS.HS-ESS1-3

Which of these stars is hottest?

• Red Star
• Yellow Star
• Orange Star
• Blue Star

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Compared to the rest of the stars, our sun is considered...

• Extremely Large and Cold
• Small with a medium temperature
• Medium size with medium temperature

Which category is our Sun located in?

• White Dwarfs
• Supergiants
• Main Sequence
• Giants

As a whole, Giants are considered hotter than White Dwarfs.

• True
• False

Look at the H-R diagram. Which star is
sort of cool, dim (not too much light), and red?

• Betelguse
• Sirius B
• Procyon B
• Barnard's star

Our sun is currently a main sequence star. All main sequence stars fuse ____ in their cores.

• helium into hydrogen

• hydrogen into helium

• helium into carbon

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Someday the sun will leave the main sequence and become a red giant star. As a red giant, it will be fusing ___ in its core. It will also swell up, becoming larger in diameter. It also cools.

• helium into hydrogen

• hydrogen into helium

• helium into carbon

Tags

NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

What small, hot, faint objects are found at B?

• neutron stars

• black holes

• white dwarfs

• brown dwarfs

Tags

NGSS.HS-ESS1-3