Birth of a Star
Life Spans
Other Stars
Star Properties
Classifying Stars
100

This force plays a major role in star formation

What is gravity?

100

The major factors in determining a star's life span is

What is size and mass?

100

After a supergiant explodes some material is leftover and may form a

What is a neutron star?

100

These two properties are related

What is color and temperature?

100

This diagram is used to show the relationship between color and temperature

What is the Hertzprung-Russell diagram? 

                           or

                 H-R diagram

200

This cloud of dust and gas is the birth place of stars

 What is a neubla?

200

A low or medium mass star will ultimately turn into this at the end of it's life span

What is a black dwarf?

200

A neutron star is the size of

What is a city?

200

This property says that the stars that are closest to us look brighter

What is apparent brightness?  

200

 The X axis on the HR diagram represents

The X axis on the HR diagram represents

300

Atoms combine to form heavier atoms during this process

What is nuclear fusion?

300

After becoming a super red giant, a massive star enters this phase of life

What is a supernova?

300

This type of star has gravity so strong nothing can escape

What is a black hole?

300

These two properties are related

What is color and temperature?

300

The Y axis on the HR diagram represents

What is luminosity?

400

These elements are found in abundance in stars

What is hydrogen and Helium?

400

A massive star has a ___________ life span.

What is short?

400

What color does the hottest star produce?

What is blue?

400

This property groups stars based on how much space they take up

What is size?

400

 Most stars are found are classified as

What is a main sequence star?

500

This is the first stage in a star's formation

What is a protostar?

500

An average star has a ___________ life span.

What is longer?

500

What determines a star's luminosity or brightness?

Size

500

This property says that the largest star is the brightest  

This property says that the largest star is the brightest

500

In main sequence stars, when surface temperature increases then absolute brightness does this

What is increase?

M
e
n
u