1. Study Hall: Working Quietly In assigned seats.

2. Unscramble these words below? O T M C E 1. I am known as a ‘dirty snowball’ R A T E H2. I am the 3 rd planet from the sun L T O P U 3. I am now considered a dwarf planet N U A T R T O S A4. I like my space. I R A N M A O O L S T C T U I N 5. Earth’s average distance from the sun

3. How did you do? Volunteers…. COMET1. I am known as a ‘dirty snowball’ EARTH2. I am the 3 rd planet from the sun PLUTO3. I am now considered a dwarf planet ASTRONAUT 4. I like my space. ASTRONOMICAL UNIT 5. Earth’s average distance from the sun

4. WRITE IN NOTEBOOK  Asteroids: chunks of rock left over from when the planets formed  Largest of the solar system bodies  Most common in the ASTEROID BELT (located between the orbits of Mars and Jupiter)

5. ASTEROIDS

6.  Discovery Channel Video of impact simulation  http://www.youtube.com/watch?v=PENT_hnyO-o http://www.youtube.com/watch?v=PENT_hnyO-o What if an Asteroid struck the Earth?

7. WRITE IN NOTEBOOK Comets: asteroid-like objects covered in dust, ice, gases, and metals that develop a fuzzy, cloud-like shell called a coma  when they orbit close to the sun, the ice instantly melts, creating a long, visible tail (a dirty snowball)  Form far away from the Sun

8. HALEYS COMET

9.  Explanation of Halley’s Comet  http://www.youtube.com/watch?v=oBq3-ZqW4Ac http://www.youtube.com/watch?v=oBq3-ZqW4Ac Halley’s Comet

10. WRITE IN NOTEBOOK  Meteoroid:  Large pieces broken off from an asteroid or comet

11. WRITE IN NOTEBOOK  Meteor:  A meteoroid that burns up in the Earth’s atmosphere.  Creates a flash of light = ‘shooting stars’  Smallest of the solar system bodies

12. WRITE IN NOTEBOOK  Meteorite:  A meteoroid that does not burn up in the Earth’s atmosphere  It lands and crashes onto the Earth.

13. Barringer Crater created 50,000 years ago  Hole created when massive meteorite struck Arizona

14. Meteorite Hitting Earth  http://www.youtube.com/watch?v =dpmXyJrs7iU http://www.youtube.com/watch?v =dpmXyJrs7iU  VIDEO IN RUSSIA

15. Homework: “I am” Activity Directions: 1.Each statement gives you a hint for which one it is. 2.The words can be used more than once. 3.Use your notes to help you fill in the blanks Due Tuesday in class

16. How can Earth Sustain Life? 3 main reasons…. Think about this….

17. 1. Distance from the Sun  Sun = major source of heat and light for entire solar system  Earth = formed in right location  = just enough solar radiation  = not too hot or too cold, moderate temperatures WRITE IN NOTEBOOK

18.  Earth  Gravity’s effect on Planets Atmosphere Discovery Ed. Video

19.  2. Earth’s atmosphere  Blanket of gases surrounding Earth  Protects humans from harmful radiation  It is breathable  Made of: nitrogen (78 %), oxygen (21%), and 1 % inert gases (argon, carbon dioxide, water vapor) WRITE IN NOTEBOOK

20.  http://www.youtube.com/watch?v=WaikvaAw2nk http://www.youtube.com/watch?v=WaikvaAw2nk Video on layers of the Atmosphere

21. Picture of the atmosphere

22. 5 Atmospheric Layers:  Troposphere: closest to the ground, where all weather happens (clouds found here)  Stratosphere: ozone layer, where airplanes fly  Mesosphere: where meteors/rock fragments burn up  Thermosphere: where northern lights ‘Auroras’ occur  Exosphere: where spacecraft/satellites orbit, upper limit of Earth’s atmosphere WRITE IN NOTEBOOK

23.  3. Earth contains liquid water  Only planet in solar system to contain liquid water  Liquid water is essential for life to exist  If we were closer to the sun, our oceans would boil away while if we were farther away, our oceans would freeze WRITE IN NOTEBOOK

24. 1.Read the article – Class set 2.Answer the questions in your notebook with your table partner 3.Answers need to be written in COMPLETE sentences for ANY credit.  Discovery Ed: READING ACTIVITY

25. Solar System Worksheet  Complete this if not done earlier  Add distance (AU) for each planet

26. Review Solar System Worksheet  Follow along as I project the information onto the whiteboard

27.  “Why Mars Died and Earth Lived”  http://www.youtube.com/watch?v=oC31pqk9sak Video