HR Diagram, Star life cycle and Galaxies

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

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

Which of these stars is hottest?

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

Which star is the coldest?

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

Which category is our Sun located in?

• White Dwarfs
• Supergiants
• Main Sequence
• Giants

Red stars are the _____________.

• hottest
• coolest
• biggest
• brightest

Blue stars are the _____________.

• hottest
• coolest
• smallest

Tags

NGSS.HS-ESS1-3

Stars are formed from big clouds of gas and dust is known as:

• dust cloud

• space fog

• neutron clouds

• nebulae

The only force acting on the nebulae is:

• thermal expansion

• singularities

• gravity

• microscopic adhesion

Tags

NGSS.HS-PS2-4

When a massive star begins to cool and expand it is known as a:

• Black Dwarf

• Red Giant

• Red Supergiant

• White Dwarf

Tags

NGSS.HS-ESS1-3

A black hole is black because:

• there is nothing in it

• it is too small to see

• it is inherently evil

• even light cannot escape its gravity