The Sun
The Stars
The Life Cycle of Stars
100

What are the three layers of the sun's atmosphere?

What is Photosphere, Chromosphere, and Corona?

100

What is the main factor that determines the life path that a star will take?

The Mass of the star. 

100

Is anything brighter than a supernova explosion in this universe?

No?

200

What are solar flares?

What is a sudden release of energy from the sun?

200

When did the earliest humans appear on Earth?

What is 2 Billion years ago?

200

Where does the birth of stars occur?

The nebula

300

Describe the process of nuclear fusion that the sun uses to produce energy?

Hydrogen + Hydrogen combine to make Helium and energy.

300

What is apparent brightness? 

How bright the star appears from Earth?

300

What is a red supergiant? 

An aging giant star that has consumed it’s core supply of hydrogen.

400

What are the Sun's interior layers? 

What is the core, radiation zone, and convection zone? 

400

How long ago was the formation of the Sun and all the Planets in our Solar System? 

About 4,600 Billion Year Ago

400

What is a white dwarf star? 

Any small, very dense star that is typically the size of a planet?

500

What is the Hertzsprung-Russell diagram used for?

It is used to classify stars according to their Luminosity and Surface Temperature

500

What percent of a stars life is spent on the main sequence?

What is 90%?

500

What is a planetary nebula?

A glowing cloud of gas surrounding a dying low-mass star.