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Shoe Box Plate Tectonic Lab Teacher Pages Purpose: Students will observe the effects of plate boundary movement. Materials Needed Per Group: Sand Shoe box Shoe box lid with slit Markers-Red and Blue Copy paper cut lengthwise (in half) Scissors Other materials Computer and projector Pre-Lab Preparation 1. Cut the shoebox in half for each group. Label each box half A and B. See model below. 2. Cut a slit in the shoe box so that the paper can fit in widthwise. 3. Set up shoebox and sand boxes. (Sand should cover the entire surface of the box- about .5 inch deep. Test the setup to determine if more or less sand is needed.) Part 1- Continental Plate Movement Procedure 1.) Move the piece A and piece B of the shoe box together. 2.) In your journal/science notebook illustrate (draw) and describe in complete sentences what happened when the two plates collided. 3.) Move the piece A and piece B of the shoe box apart. 4.) In your journal/science notebook illustrate (draw) and describe in complete sentences what happened when the two plates split apart. 5.) Adjust the box pieces so that the ends are touching, and then flatten and level out your sand. 6.) Slide piece A up your desk and slide piece B down your desk simultaneously (at the same time) 7.) In your journal/science notebook illustrate (draw) and describe in complete sentences what happened when the two plates slid on each other. 8.) Complete Identification of Plate Boundaries Activity Part A. (handout provided by teacher) Cause and Effect Challenge (Complete the following chart in the notebook or student journal page) Cause Two continental plates collide Effect Folded mountains are formed. Two plates slide past each other A fault, or crack is formed Two continental plates move away from each other. A rift valley is formed. Part Two- Seafloor Spreading and the formation of ocean ridges Procedure 1. Put the pieces of paper in the slit from the underside of the shoebox lid. Allow about 2 cm of paper to show through the slit. 2. One piece of paper will be folded back to the left of the slit and one will be folded to the right of the slit. 3. Use your red marker to color the paper that is showing (on both sides of the slit). Optional: Write the year you were born on this stripe. 4. Now pull another inch or so of paper through the slit. The amount pulled through doesn't matter as much as the fact that both sides need to pull through the same amount. 5. Now color this new strip of white paper in black marker. Optional: Write the year after you were born on this stripe. 6. Continue to pull the paper through the slit and coloring the strips (in alternate colors), until you almost run out of paper. You have now created a model for sea-floor spreading. Optional: Keep writing the year on each stripe. This shows that the older stripes end up further away from the ridge and the youngest are closest to the ridge. Part Three- Formation of Subduction Zones- Animation http://earthguide.ucsd.edu/eoc/teachers/t_tectonics/p_subduction.html http://phet.colorado.edu/en/simulation/plate-tectonics Plate Movement- Seafloor spreading 1. Where can you find the landform represented by the box top and paper? At divergent plate boundaries in the ocean. 2. Base on the model, where are the oldest rocks for ocean ridges located? The oldest rocks are located furthest from the boundary. 3. How do the patterns on the sea-floor support plate tectonics? The newest oceanic crust form through volcanic activity near the ridge and then gradually moves away from the ridge. Part Three- Subduction Zones 1. What is a subduction zone? an area or process that takes place at convergent boundaries by which one tectonic plate moves under another tectonic plate and sinks into the mantle as the plates converge. 2. Why does one tectonic plate subduct? The plate that is more dense will sink. When two oceanic crusts collide, the older plate will sink below the younger plate because it is more dense. When an oceanic crust collides with a continental crust, the heavier, more dense oceanic crust will sink. 3. What type of plate boundary movement takes place when a subduction zone is formed? convergent 4. Complete the chart below. Type of crust Type of movement Convergent Which crust will subduct? the oldest crust will subduct Trench, volcanic island arc Convergent Oceanic Trench, volcanic arc A. oceanic and oceanic B. continental and oceanic Land Feature(s) formed Conclusion Complete this sentence stem in your science journal/notebook: When land features are formed. Part III- Plate Tectonics Web quest Follow Up (Optional) http://cedarvalley.roundrockisd.org/common/pages/DisplayFile.aspx?itemId=2983403 Student Journal Page Part One-Plate Movement Observations Convergent (Moving Together) Divergent (Moving Apart) Before Transform (sliding past each other) Before Before After What happens when two continental plates collide? After What happens when two continental plates move apart? After What happens when two plates slide past each other? Cause and Effect Challenge Cause Effect Two continental plates collide A fault, or crack is formed Two continental plates move away from each other. Student Journal Page Part Two Part Two- Plate Movement- Seafloor spreading 1. Where can you find the landform represented by the box top and paper? 2. Base on the model, where are the oldest rocks for ocean ridges located? 3. How do the patterns on the sea-floor support plate tectonics? Part Three- Subduction Zones 1. What is a subduction zone? 2. Why does one tectonic plate subduct? 3. What type of plate boundary movement takes place when a subduction zone is formed? 4. Complete the chart below. Type of crust A. oceanic and oceanic B. continental and oceanic Type of movement Which crust will subduct? Land Feature(s) formed Shoe Box Plate Tectonic Lab Hypothesis: ______________________________________________________________________________ ______________________________________________________________________________ Materials Needed Per Group: Sand Shoe box Shoe box lid with slit Markers-Red and Blue Copy paper cut lengthwise (in half) Scissors Part 1- Continental Plate Movement Procedure 1.) Move the piece A and piece B of the shoe box together. 2.) In your journal/science notebook illustrate (draw) and describe in complete sentences what happened when the two plates collided. 3.) Move the piece A and piece B of the shoe box apart. 4.) In your journal/science notebook illustrate (draw) and describe in complete sentences what happened when the two plates split apart. 5.) Adjust the box pieces so that the ends are touching, and then flatten and level out your sand. 6.) Slide piece A up your desk and slide piece B down your desk simultaneously (at the same time) 7.) In your journal/science notebook illustrate (draw) and describe in complete sentences what happened when the two plates slid on each other. 8.) Complete Identification of Plate Boundaries Activity Part A. (handout provided by teacher) Sample Journal Page Convergent (Moving Together) Before After What happens when two continental plates collide? Divergent (Moving Apart) Before Transform (sliding past each other) Before After What happens when two continental plates move apart? After What happens when two plates slide past each other? Cause and Effect Challenge Cause Two continental plates collide Effect A fault, or crack is formed Two continental plates move away from each other. Part Two- Seafloor Spreading and the formation of ocean ridges Procedure 1. Put the pieces of paper in the slit from the underside of the shoebox lid. Allow about 2 cm of paper to show through the slit. 2. One piece of paper will be folded back to the left of the slit and one will be folded to the right of the slit. 3. Use your red marker to color the paper that is showing (on both sides of the slit). Optional: Write the year you were born on this stripe. 4. Now pull another inch or so of paper through the slit. The amount pulled through doesn't matter as much as the fact that both sides need to pull through the same amount. 5. Now color this new strip of white paper in black marker. Optional: Write the year after you were born on this stripe. 6. Continue to pull the paper through the slit and coloring the strips (in alternate colors), until you almost run out of paper. You have now created a model for sea-floor spreading. Optional: Keep writing the year on each stripe. This shows that the older stripes end up further away from the ridge and the youngest are closest to the ridge. Plate Movement- Seafloor spreading 1. Where can you find the landform represented by the box top and paper? 2. Base on the model, where are the oldest rocks for ocean ridges located? 3. How do the patterns on the sea-floor support plate tectonics? Part Three- Subduction Zones Complete the questions below after viewing the animations provided by your teacher. 1. What is a subduction zone? 2. Why does one tectonic plate subduct? 3. What type of plate boundary movement takes place when a subduction zone is formed? 4. Complete the chart below. Type of crust A. oceanic and oceanic B. continental and oceanic Conclusion Type of movement Which crust will subduct? Land Feature(s) formed