Wednesday Bell Ringer Copy down homework Write down daily learning log Pg. 8: Plate Boundary Notes Copy down homework Plate Boundary Tree Diagram
Types of Plate Boundaries Plate Boundaries: Where two lithospheric plates meet Divergent (what does “diverge” mean?) Convergent (what does “converge” mean?) Transform Plate Tectonics Explained
Divergent Plate Boundaries Divergent/Convergent Boundaries Divergent V ideo
Divergent Boundary: What’s Happening? When two plates move or spread apart from each other Draw Picture Connection: What causes them to move apart from each other? What hand motion would you use? http://www.classzone.com/books/earth_science/terc/content/visualizations/es0804/es0804page01.cfm?chapter_no=visualization
What does this actually look like? Video 1: http://www.videosurf.com/video/divergent-boundary-119597587 And Video 2: http://player.discoveryeducation.com/index.cfm?guidAssetId=2ED78244-ED66-438C-B2DD-55C2D810C4A1&blnFromSearch=1&productcode=US
Divergent Boundary: Landforms Created Mid-Ocean Ridge New Crust Rift Valley Sea-floor Spreading
Divergent: Vocabulary Seafloor Spreading: New crust is formed at divergent boundary; old crust is pushed further away
Divergent: Vocabulary Mid-Ocean Ridge: Underwater mountain ranges created when magma builds up at divergent boundary Rift Valley: Deep depression or “Ditch” where plates diverge
Real-World Example: Mid-Atlantic Ridge Hikers walk in the shadow of cliffs in Ireland. The divergent Mid-Atlantic Ridge rises above sea level, with the North American plate to the west and the Eurasian plate to the east.
Divergent Summary How are the plates moving at the boundary? What landforms occur as a result of plate movement?
Convergent boundaries Divergent boundaries Convergent boundaries Video Clip (2:00) Transform boundaries Today we are learning about CONVERGENT!
Convergent Boundaries There are two things that can happen when two plates move towards one another 1. One sinks under the other and starts to melt 2. They both collide and start to crumble and pile up.
Types of Convergent Boundaries Oceanic - Oceanic Oceanic - Continental Continental - Continental The only difference between the two type of plates is the rock composition and the density.
Continental-Collision: What’s happening? Two Continental Plates collide and crash into each other– lithosphere folds like wrinkles Draw Picture
Continental-Collision: Landforms Mountains Continental plates crunches and folds the rock at the boundary, lifting it up and leading to the formation of mountains. Real World Example: Appalachian Mountains
Continental-Subduction: What’s Happening? Oceanic-Continental: Oceanic plate subducts (more dense) Oceanic-Oceanic: Older oceanic plate subducts under younger oceanic plate Draw Picture http://geology.com/nsta/convergent-boundary-oceanic-continental.gif
Continental-Subduction: Landforms Trenches Volcanoes Earthquakes
Vocabulary: Convergent-Subduction Subduction Zone: An area where one plate (denser) sinks below another
Vocabulary: Convergent-Subduction Volcano: A mountain that opens downward to a pool of molten rock below the surface of the earth. When pressure builds up, eruptions occur and gases and magma are expelled. Real World Example: Cascade Volcanoes (Washington/ Oregon)
Vocabulary: Convergent-Subduction Trench: Deep depression in ocean floor forms where one plate sinks below the other Real World Examples: Mariana Trench
Convergent Plates
Types of Convergent Boundaries Oceanic-Oceanic Oceanic-Continental Continental-Continental Relative Density Both have same density, but one is older Oceanic is more dense than continental Both have same density What happens Older plate goes under the other (subduction) Ocean plate goes under the continental plate (subduction) They hit each other and squish upwards Landforms Volcanoes and ocean trench Exp: Mariana Trench Volcanoes Exp: Ring of Fire Mountains Exp: Himalaya Mountains
Where are we going? We appear to be headed for another super continent as North America, South America, Asia and Australia converge in the ever shrinking Pacific Ocean
Ring of Fire= Subduction Zones
Summary Sentence How are the plates moving at the boundary? What landforms occur as a result of plate movement?
Divergent boundaries Convergent boundaries Transform boundaries
Transform boundaries: What’s Happening Two plates slide past each other http://www.classzone.com/books/earth_science/terc/content/visualizations/es0804/es0804page01.cfm?chapter_no=visualization
Transform boundaries: Landforms Earthquakes Faults http://www.classzone.com/books/earth_science/terc/content/visualizations/es0804/es0804page01.cfm?chapter_no=visualization
Vocabulary: Earthquakes Earthquakes: “Shaking” in the earth due to plate movement. As the plates move, they put tension on themselves and each other. When the force is large enough, the crust is forced to break. When the break occurs, the stress is released as energy which moves through the Earth in the form of seismic waves
Vocabulary: Transform Faults: Cracks in the earth crust that occur when plates snap Real World Example: San Andreas Fault (California)
Tsunami Tsunami: Giant waves caused by earthquakes occurring on the ocean floor “Harbor Wave” in Japanese Real World Example: Japanese Tsunami Mega tsunami
Summary Sentence How are the plates moving at the boundary? What landforms occur as a result of plate movement?
Thursday Bell Ringer Write down daily learning log Pg. 15: Div. & Conv. Lab Analysis Pg. 16: Video Responses Pg. 17: Plate Tectonic Versatile Copy down homework Finish Stations for THURSDAY, FRIDAY, & MONDAY Glue in completed notes/homework on pg. 14
Plate Tectonic Stations Station #1: Divergent & Convergent Inquiry Lab Station #2: Plate Tectonics Video Responses (Ipad) Fill out sheet Station #3: Plate Tectonics Versatile Highlight/Underline and number evidence If finished, play matching game
Friday Bell Ringer Find your table color Glue in station completed yesterday (Pg. 15-17) into interactive notebook Pg. 16 should be written in notebook Stations need to be completed for homework
Think Earthquakes are rare? http://www.wolframalpha.com/input/?i=earthquake Think again! Over half a million magnitude 1 earthquakes a year!
Plate Tectonic Stations Station #1: Seafloor Spreading Lab and Convergent Inquiry Lab Station #2: Video Responses FOLLOW DIRECTIONS ON TABLE! Station #3: Survey & Plate Tectonics Versatile Highlight/Underline and number evidence If finished, play matching game
Monday Bell Ringer Find your table color Glue in station completed yesterday (Pg. 15-17) into interactive notebook Pg. 16 should be written in notebook
Tomorrow Plate Tectonics Classwork Mastery Check May use notebook Pages must be glued in to use! Pages #11-17
Simon Says Divergent Convergent Transform
Plate Tectonic Stations Station #1: Seafloor Spreading Lab and Convergent Inquiry Lab Station #2: Video Responses FOLLOW DIRECTIONS ON TABLE! Station #3: Survey & Plate Tectonics Versatile Highlight/Underline and number evidence If finished, play matching game
CER Is a volcano more likely to occur in E or F? Write your claim and evidence
Plate Tectonic Stations Station #1: Seafloor Spreading Lab and Convergent Inquiry Lab Station #2: Plate Tectonics Brainpop Fill out sheet Station #3: Plate Tectonics Versatile Highlight/Underline and number evidence
Convergent Inquiry Lab What does Map 1 represent or have on it (hint: look at the title and extras on the map)? Location of volcanoes What does Map 2 represent or have on it (hint: look at the title, key and colors)? Plate boundaries: Red Convergent, Blue Divergent, Green Transform Place Map 1 and Map 2 side by side.
CER: Claim, Evidence, and Reasoning Write your claim and evidence.
Convergent Inquiry Lab 4. What do you notice now that the two maps are together? The large clumps of volcanoes line up with the plate boundaries 5. What color line/boundary do the volcanoes line up with? Red lines 6. What does this color mean (hint: look at the key)? Convergent Plate Boundaries (2 plates are coming towards one another) 7. Why do you think that these plate boundary lines and volcano lines match up? Volcanoes are formed at convergent boundaries/subduction zones
Convergent Inquiry Lab Based on what you have seen and what you know about Continental Drift and Convection Currents, how do you think volcanoes form?
CER Write claim and evidence (3). The movement of earth's plates directly cause all EXCEPT this type of catastrophic event: hurricane tsunami volcano earthquake
Frequent Earthquake Areas The pink lines show where transform boundaries exist: http://www.learner.org/interactives/dynamicearth/plate.html News about Haiti: http://www.cbsnews.com/news/four-years-after-earthquake-haiti-says-its-making-comeback/ HAITI CALIFORNIA JAPAN INDIA
Seismograph Instrument that detects, measures, and records various seismic waves (Primary, Secondary, and Surface waves)