1. Volcanoes 01/22/13

2. Definition A volcano is an opening in a planet's crust, which allows hot magma, volcanic ash and gases to escape from the magma chamber below the surface.crustmagmavolcanic ash

3. How do they form? Volcanoes form often at plate boundaries. Divergent Boundaries form a. - Mid-ocean Ridge; or -Rift Valley

4. Convergent Boundaries Oceanic – ContinentalOceanic - Oceanic TrenchMid-Ocean Ridge creating an island arc Andes MountainsJapan; Hawaii

5. How do they form? 3) Hot Spots: columns of hot magma rising from a thin spot in the Earth’s crust. As the plate moves, so does the column of lava, creating island chains. Real life Example: HAWAII

6. Types: (nope they aren’t all the same) Shield, Cinder Cone and Composite volcanoes.

7. So what does it look like? http://lavapix.com/#/page/video-volcano/

8. Shield Volcanoes Shield volcanoes slowly erupt. They are large in size and don’t make huge peaks, they are more like a gently sloping mountain where one layer of lava cools hardens and another layer flows on top. Ex: Hawaiian islands. Video: http://www.bing.com/videos/search?q=shield+volcano&view =detail&mid=258E9BE9D6A967D74421258E9BE9D6A967D744 21&first=0&adlt=strict#view=detail&mid=D7D725889F4B649D 733ED7D725889F4B649D733E http://www.bing.com/videos/search?q=shield+volcano&view =detail&mid=258E9BE9D6A967D74421258E9BE9D6A967D744 21&first=0&adlt=strict#view=detail&mid=D7D725889F4B649D 733ED7D725889F4B649D733E

9. Shield Volcanoes - pictures

10. Cinder cone Volcanoes Produces high viscosity lava with ash, cinders and bombs. Explosive eruptions. Form a cone like mountain.

11. Cinder cone volcanoes Video: http://www.bing.com/videos/search?q=cinder+cone+volcano es&view=detail&mid=B8B605F2874028672739B8B605F28740 28672739&first=0&adlt=strict#view=detail&mid=1CE981DEA3 D53BF3F3061CE981DEA3D53BF3F306 http://www.bing.com/videos/search?q=cinder+cone+volcano es&view=detail&mid=B8B605F2874028672739B8B605F28740 28672739&first=0&adlt=strict#view=detail&mid=1CE981DEA3 D53BF3F3061CE981DEA3D53BF3F306

12. Composite Volcanoes Lava flows alternate with explosive eruptions of ash, cinder and bombs. They are tall, cone shaped mountains where layers of lava alternate with layers of ash. EX: Mt. Fuji, Mt. Saint Helens Video: http://www.bing.com/videos/search?q=composite+volcano+& view=detail&mid=2CDF551F7B6426E174912CDF551F7B6426E 17491&first=0&adlt=strict#view=detail&mid=6B50410E72C30 DFB3A2D6B50410E72C30DFB3A2D http://www.bing.com/videos/search?q=composite+volcano+& view=detail&mid=2CDF551F7B6426E174912CDF551F7B6426E 17491&first=0&adlt=strict#view=detail&mid=6B50410E72C30 DFB3A2D6B50410E72C30DFB3A2D

13. Composite volcanoes (also called Stratovolcano)

14. Quick Write: If you were building a new house by a volcano, which type of volcano would be best? Done? Get out P-9 and get ready to check over your answers. Then help me pass back! Agenda: Warm Up Check P-9 / Questions Binder Organization / TOC Hawaii Hot Spot Modeling Lab

15. Video – Bill Nye models a volcano http://www.bing.com/videos/search?q=bill+nye+volcanoes&vi ew=detail&mid=309A88E252D326BA779F309A88E252D326B A779F&first=0&qpvt=bill+nye+volcanoes&adlt=strict#view=de tail&mid=5ACAD5362B938E2822885ACAD5362B938E282288 http://www.bing.com/videos/search?q=bill+nye+volcanoes&vi ew=detail&mid=309A88E252D326BA779F309A88E252D326B A779F&first=0&qpvt=bill+nye+volcanoes&adlt=strict#view=de tail&mid=5ACAD5362B938E2822885ACAD5362B938E282288

16. Reading Pages 91 – 105. Look at the pictures. Use the diagrams.

17. Anatomy (the different parts and what geologists call it)

18. Fill in your note catcher