Star Life Cycle
HR Diagram
Galaxies
100

Where do all stars begin?

In the nebula

100

Where will you find the hottest stars on the HR diagram?

On the left side of the x axis.

100

Which galaxy does our solar system belong?

The Milky Way Galaxy

200

True or False. A star's mass has no affect on it's life Cycle?

False

200

Describe the temperature and luminosity of white dwarfs.

White dwarfs are hot and dim.

200

What category of galaxy is the Milky Way?

Spiral Galaxy.

300

During which phase of a star's life cycle will it become a red giant?

When it begins to fuse Helium because it ran out of Hydrogen.

300

Describe the relationship between color and temperature on the HR diagram for Main sequence stars. 

Temperature of stars increase as color changes from red to blue. 

300

Describe the galaxy that is round and flat and contains older stars with little gas and dust.

Elliptical galaxies

400

Describe the end of a high mass star's life.

It will end in a supernova and then form a black hole or neutron star.

400

Which category of stars are cool and bright?

Red giants and red supergiants. 

400

Explain how spiral galaxies are different from elliptical galaxies.

Answers may vary.

500

What is our Sun's next stage in its life cycle?

It will become a red giant.

500

Which spectral class does the Sun belong?

G

500

Bonus!

Everyone gets points

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