Write It! Station Directions

Transcription

1 Write It! Station Directions It is recommended that you have completed at least two of the following stations before working at this station. -Read It! -Explore It! -Watch It! -Research It! Answer each of the task card questions on the lab sheet in complete sentences.

2 Compare convergent plate boundaries that have the same density to convergent plate boundaries with different densities. What causes the tectonic plates to move? Describe what geological features are created at convergent, divergent, and transform plate boundaries.

3 Assess It! Station Directions It is recommended that you have completed at least two of the following stations before working at this station. -Read It! -Explore It! -Watch It! -Research It! Each member will answer the questions from the task cards on the lab sheet in the Assess It! section.

4 What geological feature can be created by a divergent boundary? A. Mountain chains B. Volcanoes C. Earthquakes D. Mid-ocean ridge, rift valleys What is the difference between convergent and divergent plate boundaries? A. Convergent collides together, divergent divides apart B. Convergent collides together, divergent slides by each other C. Convergent divides apart, divergent collides together D. Convergent divides apart, divergent slides by each other. Use the diagram to determine what geological feature would most likely occur. They are the same density. A. Mountain chains B. Volcanoes C. Earthquakes D. Mid-ocean ridge, rift valleys What geological feature can be created by a transform boundary? A. Mountain chains B. Volcanoes C. Earthquakes D. Mid-ocean ridge, rift valleys

5 Read It! Station Directions Each member of the group will read the passage and answer the questions from the task cards on the lab sheet in the Read It! section. It is important to remember that the answers will come directly from the reading passage.

6 . The Plate Boundaries There are 3 main types of plate boundaries on Earth. Each of them creates a unique geological feature. A divergent boundary occurs when two tectonic plates move away from each other. Along these boundaries, lava spews from long fissures and geysers spurt superheated water. Frequent earthquakes strike along the rift. Beneath the rift, magma molten rock rises from the mantle. It oozes up into the gap and hardens into solid rock, forming new crust on the torn edges of the plates. Magma from the mantle solidifies into basalt, a dark, dense rock that underlies the ocean floor. Thus, at divergent boundaries, oceanic crust, made of basalt, is created. When two plates come together it is known as a convergent boundary. The crashing of the two plates overlaps the edge of one or both plates. Plates can come together (converge) in three ways: 1. Continent plate and continent plate 2. Ocean plate and ocean plate 3. Continent plate and ocean plate If a continental plate converges with oceanic crust, it is forced down into the mantle where it begins to melt. The ocean plate goes under the continental plate because the ocean plate is denser. Magma rises into and through the other plate, solidifying into new crust. Magma formed from melting plates solidifies into granite, a light colored, lowdensity rock that makes up the continents. Thus, when a continental and oceanic plate meet, continental crust, made of granite, is created, and oceanic crust is destroyed. Mountains and sea-floor trenches form at convergent boundaries. Two plates sliding past each other forms a transform plate boundary. Natural or human-made structures that cross a transform boundary are offset split into pieces and carried in opposite directions. Rocks that line the boundary are pulverized as the plates grind along, creating a linear fault valley or undersea canyon. As the plates alternately jam and jump against each other, earthquakes rattle through a wide boundary zone. In contrast to convergent and divergent boundaries, no magma is formed. Thus, crust is cracked and broken at transform margins, but is not created or destroyed.

7 The Plate Boundaries There are three main types of plate boundaries on Earth. Each of them creates a geological feature such as mountains, rift valleys, canyons, and such. A divergent boundary happens when two tectonic plates move away from each other. Along these borders, lava flows from long cracks and superheated water sprays from geysers. Many earthquakes happen along a separation in the earth called a rift. Most rifts happen in oceans, but there are a few on land. Under the rift, magma molten rock rises from the mantle. It slowly moves up into the gap. Finally, it cools into solid rock, usually basalt. This forms new crust along the edges of the plates. When two plates come together it is known as a convergent boundary. The crashing of the two plates overlaps the edge of one or both plates. Plates can come together (converge) in three ways: 1. Continent plate and continent plate 2. Ocean plate and ocean plate 3. Continent plate and ocean plate When an ocean plate meets a continent plate, the ocean plate will move under the continent. This happens because the ocean plate is denser. The sinking ocean plate begins to melt and turn into magma. The magma rises and comes to the surface, forming new crust. Magma formed from melting plates hardens into granite. This is a light colored, low-density rock that makes up the continents. Mountains and sea-floor trenches form at convergent boundaries. Two plates sliding past each other form a transform plate boundary. A fence built across this type of boundary may break when the plates shift. The two sides of the fence are carried in opposite directions. Rocks that line the boundary are crushed as the plates rub along. This can form a fault valley on land or an undersea canyon on the ocean floor. Earthquakes form along this type of boundary. The San Andreas Fault in California is an example of a transform plate boundary. Different from convergent and divergent boundaries, a transform boundary doesn t create magma. Thus, crust is cracked and broken at this type of boundary, but crust is not created nor destroyed.

8 What are the 3 main types of tectonic plate boundaries? A. Convergent, Divergent, Transfer B. Convection, Divergent, Transform C. Convergent, Divergent, Transform D. Convection, Divergent, Transfer What would be the best title for this passage? A. How Plate Boundaries Impact Humans B. All About Earthquakes and Volcanoes C. How Mountains are Made D. 3 Main Types of Plate Tectonic Boundaries A. convection B. divergent C. convergent D. transform Which is the only plate boundary that doesn t involve magma? A. Earthquake B. Rift Valley C. Sea-floor trench D. Mid-ocean ridge A convergent boundary can form a mountain chain or a.

9 Watch It! Station Directions Each member of the group will go to the website listed on task card #1 Complete the task cards in order. Every student will answer the questions from the task cards on the lab sheet in the Watch It! section of the lab sheet.

10 YouTube Cloud Both URL s are case-sensitive 1. Click Play on the video. 2. Answer questions from cards #2-4 on your lab sheet. What causes the tectonic plates to move? YouTube How did the creator of this video explain why some plates are moving faster than others? What are the 3 main types of plate boundaries?

11 Research It! Station Directions Each member of the group will go to the website listed on task card #1 Complete the task cards in order. Every student will answer the questions from the task cards on the lab sheet in the Research It! section.

12 1. Go to Read the introduction and follow the directions. 2. What is created when two continental crusts collide? 1. How do plates move at a transform boundary? 1. What happens at a subduction zone? 1. What happens at a midocean ridge?

13 Explore It! Station Directions One member of the group will read the task cards in order. The group will be responsible for completing each of the tasks that are being read. Each member of the group will then write their conclusions down on the lab sheet in the Explore It! section.

14 1. The two towels represent two different tectonic plates. 2. Slide them towards each other. Write your observations about the plate boundary on your lab sheet. When two plates collide together this is called a convergent plate boundary. You should have noticed that both plates rose up to create mountains because the towels (plates) were the same density. The Himalayans mountains are a great example of a convergent plate boundary. 1. Find the sheet labeled divergent plate boundary. 2. Place the sheet between two tables so that only the edges of the paper are showing. See card #4 for an image. 3. Slowly pull the sides away from each other.

15 When two plates divide apart from each other this is called a divergent plate boundary. New magma (the paper) is coming up from the Earth and fills in the gap left by the dividing plates. When this happens on the ocean floor it creates sea-floor spreading or a Mid-ocean ridge. When it happens on a landmass a rift valley is created. 1. Use the paper plates halves and line them up as if they were a whole. 2. Slowly slide each of the paper plates in the direction indicated on each half. When two plates slide past each other this is called a transform plate boundary. Transform plate boundaries cause earthquakes to happen. One of the most famous transform boundaries in the world is the San Andreas fault on the western coast of the United States. The North American plate is sliding in the opposite direction of Pacific plate. 1. Use the colored socks and put one on each arm. 2. Using the diagram above, model an oceanic plate subducting under a continental plate.

16 When one convergent plate is more dense than the other a subduction zone forms. The denser plate will go underneath the less dense plate. This causes a lot of pressure to build up under the less dense plate and will often force magma to the surface of the crust. When this happens a volcano is formed. 1. On your lab sheet draw arrows for the movement of each type of plate boundary. a. Convergent b. Divergent c. Transform d. Subduction

17 Divergent Plate Boundary Newer Crust Older Crust Older Crust Newer Crust

18 Illustrate It! Station Directions Each member of the group will draw a quick sketch on the lab sheet the shows they understand the concept that is being taught. Use the colored pencils and markers that are provided. The directions for the sketch are provided on the task card at the table.

19 Illustrate It! Station Directions Sketch 4 images that prove you understand the following concepts: Convergent Boundary Divergent Boundary Subduction Zone Transform Boundary

20 Organize It! Station Directions It is recommended that you have completed at least two of the following stations before working at this station. -Read It! -Explore It! -Watch It! -Research It! Every student will answer the questions from the task cards on the lab sheet in the Organize It! Section. Please mix up the cards again before the next group arrives at this station.

21 Use the diagram and key terms to create a labeled diagram of the different plate boundaries.

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23 Convergent Boundary Divergent Boundary Convection Currents Subduction Mid-Ocean Ridge Trench Area where Volcanoes Form Convergent Boundary Divergent Boundary Convection Currents Subduction Mid-Ocean Ridge Trench Area where Volcanoes Form

24 Plate Boundaries Explore It! Task Card #1: Name Task Card #10: Convergent Divergent Transform Subduction Write It! Task Card #1: Task Card #2: Task Card #3:

25 Plate Boundaries Illustrate It! Assess It! #1 #3 Research It! #2 #4 Task Card #1, Question 2: Organize It! Name Read It! #1 #3 #2 #4 Task Card #3, Question 1: Task Card #2, Question 1: Task Card #4, Question 1:

26 Plate Boundaries Name Watch It! Task Card #2: Task Card #3: Task Card #4: