Exploring Plate Tectonics: Gizmo Simulation Guide

Name: Amani Date: Student Exploration: Plate Tectonics Directions: Follow the instructions to go through the simulation. Respond to the questions and prompts in the orange boxes. Vocabulary: asthenosphere, collision zone, convergent boundary, crust, divergent boundary, earthquake, lithosphere, mantle, plate, plate tectonics, subduction zone, transform boundary, volcano Prior Knowledge Questions (Do these BEFORE using the Gizmo .) 1. Volcanoes are openings in Earth’s crust where lava, gas, and ash can erupt. Where are active volcanoes located? at the boundaries between tectonic plates 2. An earthquake is a violent shaking of Earth’s surface. Where are earthquakes common? along the rim of the Pacific Ocean Gizmo Warm-up Volcanoes, earthquakes, mountains, and other features of Earth’s surface owe their origin to the movements of plates : enormous, slowly-moving sections of Earth’s crust. At plate boundaries, plates collide, move apart, move under or over each other, or slide past one another. The theory of plate tectonics describes how the plates move, interact, and change the physical landscape. The Plate Tectonics Gizmo shows a cross-section, or side view, of Earth. (Not to scale.) Above the cross section is a bird’s-eye view of the same location. 1. Turn on Show labels . What are the layers of Earth that you can see? The crust, the lithosphere, and the asthenosphere The lithosphere is a layer of rigid rock that consists of the crust and the upper part of Earth’s mantle . The asthenosphere is a layer of the mantle that can deform like plastic. 2. Turn on Boundary name , and click on each boundary. What four boundaries do you see? transform boundaries, convergent boundaries: collision, convergent boundaries: subduction, divergent boundaries Activity A: Sliding plates Get the Gizmo ready : ● Select BOUNDARY A. Reproduction for educational use only. Public sharing or posting prohibited. © 2020 ExploreLearning™ All rights reserved

Question: What happens when plates slide past one another? 1. Observe : Boundary A is a transform boundary . The arrows below the BOUNDARY A label will move the plates. Click the left arrow once to see how the plates move. How would you describe the motion of plates in a transform boundary? The motion of plates in a transform boundary moves in an up and down motion, they just slide next to each other. 2. Sketch : Draw a bird’s-eye view of the plate boundary before and after the plate motion. Draw an ✏ arrow to show which way the plate moved. Before movement After movement 3. Locate : Turn on Show location . Where on Earth can you find transform boundaries? (Note: You can refer to a world map or atlas for location names.) Around Africa Highlight these locations on the map below. To do this, click on the drawing and select ✏ Edit . Select the scribble from the line menu to sketch on the map. Activity B: Colliding continents Get the Gizmo ready : ● Turn off Boundary name and Show location . ● Select BOUNDARY B. Question: What happens when two continents collide? Reproduction for educational use only. Public sharing or posting prohibited. © 2020 ExploreLearning™ All rights reserved ✏ Either Hand draw or use Drawing tool ✏ Either Hand draw or use Drawing tool

1. Observe : Boundary B is an example of a convergent boundary , where two plates are moving toward one another. When the two converging plates both contain continental crust, it is called a collision zone . Click the left arrow four times to see how the plates move. How would you describe the motion of plates in a collision zone? They form on each other to create something similar to a mountain 2. Sketch : Draw a side view of the plate boundary before and after the plate motion. Draw an arrow to show which way the plate moved. Before movement After movement 3. Locate : Turn on Show location . Where on Earth can you find collision zones? (Note: You can refer to a world map or atlas for location names.) Near Russia Highlight these locations on the map below. ✏ Activity C: Oceanic crust meets continental crust Get the Gizmo ready : ● Turn off Boundary name and Show location . ● Select BOUNDARY C. Question: What happens when ocean crust collides with continental crust? 1. Observe : Boundary C is another type of convergent boundary called a subduction zone . Click the left arrow four times to see how the plates move. How would you describe the motion of plates in a subduction zone? Reproduction for educational use only. Public sharing or posting prohibited. © 2020 ExploreLearning™ All rights reserved ✏ Either Hand draw or use Drawing tool ✏ Either Hand draw or use Drawing tool

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2. Sketch : Draw a side view of the plate boundary before and after the plate motion. Draw an arrow to show which way the plate moved. Before movement After movement 3. Locate : Turn on Show location . Where on Earth can you find subduction zones? (Note: You can refer to a world map or atlas for location names.) Highlight these locations on the map below. ✏ Activity D: Spreading plates Get the Gizmo ready : ● Turn off Boundary name and Show location . ● Select BOUNDARY D. Question: How is new crust formed? 1. Observe : Boundary D is a divergent boundary . Click the right arrow four times to see how the plates move. How would you describe the motion of plates in a divergent boundary? Reproduction for educational use only. Public sharing or posting prohibited. © 2020 ExploreLearning™ All rights reserved ✏ Either Hand draw or use Drawing tool ✏ Either Hand draw or use Drawing tool

2. Sketch : Draw a side view of the plate boundary before and after the plate motion. Draw an arrow to show which way the plate moved. Before movement After movement 3. Locate : Turn on Show location . Where on Earth can you find divergent boundaries? (Note: You can refer to a world map or atlas for location names.) Highlight these locations on the map below. ✏ Reproduction for educational use only. Public sharing or posting prohibited. © 2020 ExploreLearning™ All rights reserved ✏ Either Hand draw or use Drawing tool ✏ Either Hand draw or use Drawing tool

Plate Tectonics Gizmos with map

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