The Milky Way Galaxy START EXIT Funded by Title V HIS Grant at LAMC and U.S Department of Education Corresponds to Ch 9 in book Astro by Seeds Prepared by: Julissa Garcia, Aramik Yousefian Hagop Hadjinian, Tatevik Grigoryan Activity director: Lilit Haroyan Faculty Advisor: Richard Rains

1. A supermassive black hole is… HINT Scary At the center of our galaxy At the center of our galaxy A wormhole whose existence is hypothetical A wormhole whose existence is hypothetical Dark Exit

HINT Scary At the center of our galaxy A wormhole whose existence is hypothetical Dark Correct! next 1. A supermassive black hole is… Exit

1. A supermassive black hole is… Incorrect Astronomers have found a large mass at the center of our galaxy that is most likely a supermassive black hole. back next HINT Exit

Closer than you think… back Exit

2. Population I stars are… HINT Young and recently formed Young and recently formed Old and highly formed Old stars with long life spans Old stars with long life spans Young stars with short life spans Young stars with short life spans Exit

HINT Young and recently formed Young and recently formed Old and highly formed Old stars with long life spans Old stars with long life spans Young stars with short life spans Young stars with short life spans Correct! next 2. Population I stars are… Exit

Incorrect Population I stars are young, recently formed and are found in the tips or spiral arms in galaxies. back next 2. Population I stars are… HINT Exit

If these stars were people they would be children… back Exit

3. Population II stars are… HINT Young and recently formed Young and recently formed Old and highly formed Old stars with long life spans Old stars with long life spans Young stars with short life spans Young stars with short life spans Exit

HINT Young and recently formed Young and recently formed Old and highly formed Old stars with long life spans Old stars with long life spans Young stars with short life spans Young stars with short life spans Correct! next 3. Population II stars are… Exit

back next 3. Population II stars are… Incorrect Population II stars are old, highly formed and are found in the halo of galaxies.. next back HINT Exit

If these stars were people they would be seniors… back Exit

4. In accordance to the period- luminosity relation, if a star has a long period it has… HINT A long lifespan A short lifespan It is very dim It is very luminous Exit

HINT A long lifespan A short lifespan It is very dim It is very luminous 4. In accordance to the period- luminosity relation, if a star has a long period it has… Correct! next Exit

4. In accordance to the period- luminosity relation, if a star has a long period it has… Incorrect The longer the period of the stars, the brighter the star is. back next HINT Exit

Another word for “Luminosity” is brightness… back Exit

5. What is NOT true about Cepheid variables? HINT Pulsation period of 1-60 days Pulsation period of 1-60 days They are stars They contain ketchup Period of variation related to their luminosity Period of variation related to their luminosity Exit

HINT Pulsation period of 1-60 days They are stars They contain ketchup Period of variation related to their luminosity Correct! next 5. What is NOT true about Cepheid variables? Exit

5. What is NOT true about Cepheid variables? Incorrect Obviously they do not contain ketchup! They have a period-Luminosity relationship, are stars and pulsate 1-60 days. back next HINT Exit

Quiet obvious a certain condiment does not fit… back Exit

6. Globular clusters are… HINT Traveling at the speed of light Traveling at the speed of light 10-10,000 stars with no pattern, spread out 10-10,000 stars with no pattern, spread out 1 mil-10 million stars that are elliptical 1 mil-10 million stars that are elliptical 10, million stars that are elliptically shaped 10, million stars that are elliptically shaped Exit

HINT Traveling at the speed of light 10-10,000 stars with no pattern, spread out 1 mil-10 million stars that are elliptical 10, million stars that are elliptically shaped Correct! next 6. Globular clusters are… Exit

6. Globular clusters are… Incorrect Globular clusters are generally star rich with 10,000-1 million stars. back next HINT Exit

back It consists of the number 1 million… Exit

7. Open clusters are… HINT Traveling at the speed of light Traveling at the speed of light 10-10,000 stars with no pattern, spread out 10-10,000 stars with no pattern, spread out 1 mil-10 million stars that are elliptical 1 mil-10 million stars that are elliptical 10, million stars that are elliptically shaped 10, million stars that are elliptically shaped Exit

HINT Traveling at the speed of light 10-10,000 stars with no pattern, spread out 1 mil-10 million stars that are elliptical 10, million stars that are elliptically shaped Correct! next 7. Open clusters are… Exit

Incorrect Open clusters are generally star poor with 10-10,000 stars. back next 7. Open clusters are… HINT Exit

It consists of the number 10, back Exit

8. What type of galaxy is this? HINT Elliptical Spiral Barred spiral Barred elliptical Exit

HINT Spiral Barred spiral Barred elliptical Elliptical Correct! next 8. What type of galaxy is this? Exit

8. What type of galaxy is this? Incorrect This galaxy was a barred spiral because it had a bar at the middle and spiral arms. back next HINT Exit

It has a bar in the middle… back Exit

HINT Nucleus. Nucleus. Disk. Black hole. Central bulge. 9. What is the circular thing in the middle? Exit

HINT Nucleus. Disk. Black hole. Central bulge. Correct! next 9. What is the circular thing in the middle? Exit

9. What is the circular thing in the middle? Incorrect It’s actually the nucleus of the galaxy. back next HINT Exit

Another word for core… back Exit

10. How many light years is the Milky Way galaxy across? HINT 1,000 LY 10,000 LY 1 million miles 100,000 LY 100,000 LY Exit

HINT 1,000 LY 10,000 LY 1 million miles 100,000 LY Correct! next 10. How many light years is the Milky Way galaxy across? Exit

Incorrect The Milky Way is 100,000 Lys across back next 10. How many light years is the Milky Way galaxy across? HINT Exit

It has more than four Zeros… back Exit

EXIT TRY AGAIN TRY AGAIN TRY AGAIN TRY AGAIN