 What are the three different types of galaxies and how are they different? WarmUp COTD BrainPop Red Shift Poster(10 min) Galaxies Movie.

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Presentation transcript:

 What are the three different types of galaxies and how are they different? WarmUp COTD BrainPop Red Shift Poster(10 min) Galaxies Movie

 When scientists see light from distant galaxies it is mostly __red__ shifted…. Meaning the galaxies are moving __away___ from the earth and the universe is __expanding____. WarmUp Red Shift Poster BrainPop Quiz

 1. Use marker to draw two #1’s on your balloon 1 cm apart  2. Draw two #2, 2 cm apart  3. Draw two #3, 3 cm apart  *** Fill out the distance data in your data table  5. Now blow two breathes into the balloon and measure the distance between the 1’s, 2’s, 3’s  ***Fill out the distance data in your data table  6. Blow two more breathes into the balloon measure the distances between the 1’s, 2’s and 3’s  **** Fill out the distance data in your data table  7. Blow two more breathes into the balloon and measure the distances between the 1’s, 2’s, 3’s ******Document you data on the data table 8. ANSWER the QUESTIONS FOUND ON THE BACK OF SHEET, on you own paper

 1. What did you observe happened to the numbers as you added more air? The numbers stretched apart or they expanded.  2. What did the data say happened to the numbers as you added more air? The data suggested that the numbers moved apart.  3. The numbers represent __Galaxies___… and what are they doing? The galaxies are moving apart from each other (expanding).  4. The balloon represents the ___Universe___. What can you say is happening to it as time passes? The universe is expanding or growing as time passes.

BreathesDistance between Ones Distance between Twos Distance between Threes Breath 01 cm2 cm3 cm Breath 1 and 2235 Breath 3 and 4458 Breath 5 & 66913

What is a galaxy? Pg 715 What galaxy are we in? The Milky Way Draw a picture of the Milky Way Galaxy? Label: The Sun Nucleus Explain where we are compared to the Nucleus What kind of galaxy is the Milky Way? How wide is it? How thick is it? Size of the Milky Way Structure of the Milky Way Types of Galaxies Name % of Galaxies Size and age Picture Large & medium age 30% Spiral Elliptical 60% Medium to large & oldest of the galaxies Medium & young 10% Irregular

Elliptical Galaxies Spiral Galaxies YoungerOlder Irregular Galaxies