Daily Routine

1. Daily Routine • Sit in your appropriate seat quietly • Make sure you are wearing your ID’s • Have all necessary materials out • All back packs on the floor • All cell phones on silent and away in backpacks • All IPods off and headphones out of your ears • Hats off • No food or drink except for water

2. Earth Science Announcements

3. Igneous Rocks How are minerals affect by the different stages of the rock cycle?

4. I will be able to…

5. What are Igneous Rocks? • Igneous rocks form due to the solidification of magma or lava • Magma: is the molten or semi-molten form of rocks • High in Iron, Silicon, and Oxygen • Magma contains: • Minerals • Gases (CO2 and Sulfur dioxide) • Water and Water vapor

6. How do minerals condense to form rocks from magma? • Fractional crystallization: the removal and separation of a melt of different minerals at different temperatures and different periods of cooling based on chemical composition

7. Bowen’s Reaction Series • Minerals last to form: • Form at less temperatures • Contains lots of silica (Si and O) • Lighter in color • Minerals first to form: • Form at high temperatures • Contains less silica (Si and O) • High in iron • Darker in color

8. Felsic Vs. Mafic Igneous Rocks

9. Where can Igneous Rock form?

10. Intrusive vs. Extrusive Intrusive Extrusive Texture: Fine (microscopic crystals) Conditions to form extrusive igneous rocks: Forms on the surface Hot lavas that cool rapidly Short and rapid cooling which yields little crystal development • Texture: Coarse (large visible crystals) • Conditions to form intrusive igneous rocks: • Deep below the surface • Cool magma temperatures ( • Long and slowing during crystallization

11. Other Textures • All extrusive features • Glassy – looks like glass • Vesicular – very jagged due to rapid release of gasses out of magma • Porphorytic: • Magma cools for some crystal development • Erupted for majority of rock is fine grained

12. Daily Routine • Sit in your appropriate seat quietly • Make sure you are wearing your ID’s • Have all necessary materials out • All back packs on the floor • All cell phones on silent and away in backpacks • All IPods off and headphones out of your ears • Hats off • No food or drink except for water

13. Earth Science Announcements No Homework

14. Bell Work • Compare and contrast felsic and mafic rocks • Compare and contrast the process which extrusive and intrusive igneous rocks form

15. Identify that Rad Igneous Rock! How are minerals affect by the different stages of the rock cycle?

16. I will be able to… • Identify igneous rocks using the different properties of these igneous rocks • Apply the similarities and differences between felsic and mafic igneous rocks • Apply the similarities and differences between extrusive and intrusive igneous rocks

18. Daily Routine • Sit in your appropriate seat quietly • Make sure you are wearing your ID’s • Have all necessary materials out • All back packs on the floor • All cell phones on silent and away in backpacks • All IPods off and headphones out of your ears • Hats off • No food or drink except for water

19. Earth Science Announcements No Homework

20. Bell Work • What are the different types of igneous rock texture? • Describe how the textures formed?

21. Introduction to Volcanoes How are minerals affect by the different stages of the rock cycle?

22. I will be able to…

23. Convergent Volcano • Occurs long convergent plate boundaries where subduction occur • Oceanic Crust melts to form magma • Magma moves up due to low density • Collects in magma chamber and erupts when pressure and volume is great

24. Divergent Volcanoes • Associated with sea floor spreading • Forms new oceanic crust at the bottom of the ocean • Forms pillow basalts (blocky basalt rocks) at mid-ocean ridges • Not explosive, except for the area around Iceland • Accounts for 2/3rd of the volcanism on Earth

25. Hot Spot Volcanoes • Hypothesized hot region in Mantle affecting the Crust • Plumes of magma rise to surface • Forms huge volcanoes • Often show how plates move and change movement

26. What are the three types of volcanoes? • Shield • Cinder Cone • Composite or Stratovolcano

27. Shield Volcano • Largest of the three types of volcanoes • Long Gentle Slopes • Composed of layers of basaltic lava • Quiet Eruptions

28. Island of Hawaii

29. Volcanism on Mars

30. Cinder Cone Volcano • Smallest of the three types of volcanoes • Steep sloped, cone shaped • Usually composed of basaltic lava • Explosive eruption • Usually located on the edges of larger volcanoes

31. Sunset Crater

32. SP Crater

33. Composite Volcano • Considerably larger than a cinder cone • Tall and majestic • Composed of layers of rock from explosive eruptions • Cycle through periods of quiet and explosive eruptions

34. Humphrey Peaks

35. Mt. St. Helens and Mt. Rainer

36. Daily Routine • Sit in your appropriate seat quietly • Make sure you are wearing your ID’s • Have all necessary materials out • All back packs on the floor • All cell phones on silent and away in backpacks • All IPods off and headphones out of your ears • Hats off • No food or drink except for water

37. Earth Science Announcements

38. Bell Work • Compare and contrast the three types of volcanoes? • Are there any volcanoes on other planets or moons? Where?

39. Shield Volcano • Largest of the three types of volcanoes • Long Gentle Slopes • Composed of layers of basaltic lava • Quiet Eruptions

40. Cinder Cone Volcano • Smallest of the three types of volcanoes • Steep sloped, cone shaped • Usually composed of basaltic lava • Explosive eruption • Usually located on the edges of larger volcanoes

41. Composite Volcano • Considerably larger than a cinder cone • Tall and majestic • Composed of layers of rock from explosive eruptions • Cycle through periods of quiet and explosive eruptions

42. Bell Work • Compare and contrast the three types of volcanoes? • Are there any volcanoes on other planets or moons? Where?

43. Volcanoes How are minerals affect by the different stages of the rock cycle?

44. I will be able to… • Diagram the three types of volcanoes • Describe the different features of volcanoes

45. 10 Minutes! • Get a textbook from the back of the classroom • Open to page 505, diagram a volcano and label the parts of a volcano • Define the parts of a volcano • Turn to page 506 and diagram the three volcanoes and label the parts of the volcano

46. Does Arizona have any volcanoes? If so, where do we have volcanoes? YES!!!!!!!

47. San Francisco Volcano Field

48. San Francisco Volcano Field • Located in Northern Arizona • Hot spot hypothesis • 600 volcanoes • Primarily basalt cinder cone volcanoes • Tallest peak is Humphrey Peak (stratovolcano) • Volcanic lava dome (think of a large partially popped zit)

49. The Dangers of Volcanic Eruptions

50. The Dangers of Volcanic Eruptions • Tephra: erupted material • Blocks: Large boulders erupted from volcano • Ash: small particles (2mm) • Often hot when erupted • Usually shards of glass • Causing asphyxiation (suffocation) • Can travel far distances and high in the atmosphere • Can cause mini or large scaled climate changes