1. EQ: What is our galaxy’s role in the universe?
Our Universe
EQ: What is our galaxy’s role in the universe?

2. Catalog spot check: Due Friday at end of class.
Milky Way
Catalog spot check: Due Friday at end of class.
Inner & Outer Planets = done
Heliocentric vs. geocentric = done
Comets, asteroids, meteroids= almost done
Today finish your
galaxy page
comets, asteroids, meteoroids,
and begin your moon!

5. Our Galaxy: Milky Way Large groups of stars, dust, and gas
Some have more than a trillion stars!
Types of Galaxies: Spiral, Elliptical, Irregular
Which type is ours and where exactly is our solar system located?

7. Spiral
Bulge at center
Spiral arms
Arms are made up of new stars, gas, dust
Milky Way is an example, orion arm

8. Elliptical Bright center Very little dust and gas
Contains mostly old stars
Massive blog of stars
Look like spheres or is outstretched

9. Irregular Their shape is irregular Close to a spiral galaxy
Large Magellanic Cloud

10. Let’s take a closer look.
Brainpop Galaxy

11. Contents of Galaxies:
Gas Clouds
Star Clusters
Origin of Galaxies:
Quasars
What is our global address?

12. Milky Way Brainpop Today finish your galaxy page
comets, asteroids, meteoroids
AC: Independent Study Pages