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NAME: ____________________________________ BLK: _____ DATE: ________ NB#___ PLATE TECTONICS THINGLINK ACTIVITY http://www.thinglink.com/scene/461950478645723138 Click on the to take you to the first website. Once you are there, press play, watch the animation, and answer the following questions. 1. What does the color red represent? __________2. What does the color blue represent? ___________ 3. Which “color” is more dense? Click on the ___________________ to take you to the next website. Read the section and fill in the blanks below. Hot air ___________, becomes less ________, and ________. Cool air becomes more _________, and _______. This picture represents a ________________ ________________ current. Circular currents are called ______________________. Earth's surface is made up of giant ____________ that fit together like a moving spherical jigsaw. These plates can be made from two types of crustal material: ____________ crust and ________________crust. Which crust is more dense? _______________________________ Fill in the 6 blanks on the diagram NAME: ____________________________________ BLK: _____ DATE: ________ NB#___ Click on the and watch the video which illustrates how convection cells within the earth's mantle are thought to drive tectonic plate movement. Click on the Watch the convection currents demo and answer the following questions. What are the four layers of the earth? _____________, ____________, ___________, ___________. In the demo, what does the teacher use as his heat source? _______________________ Which layer of the Earth produces the most heat? _______________________ Which layer of the Earth has convection currents? _______________________ The _______________ is broken into large pieces called tectonic plates. 1. There are 15 major tectonic plates 2. Oceanic plates are made of oceanic crust and underlying rocky mantle 3. Continental plates are made of continental and oceanic crust and underlying rocky mantle Below is a list of the major tectonic plates. Decide whether each plate is oceanic, continental, or both. African Plate ______________________ Arabian Plate ______________________ Antarctic Plate ______________________ Caribbean Plate ______________________ Australian Plate ______________________ Cocos Plate ______________________ Eurasian Plate ______________________ Juan de Fuca Plate ______________________ Indian Plate ______________________ Nazca Plate ______________________ North American Plate ________________ Philippine Sea Plate ______________________ Pacific Plate Scotia Plate ______________________ South American Plate ______________________ ______________________ NAME: ____________________________________ BLK: _____ DATE: ________ NB#___ There are three main types of plate movement: 1. Divergent: 2 plates spreading apart 2. Convergent: 2 plates coming together (subduction or collision) 3. Transform: 2 plates sliding past each other Click on the ? and fill in the blanks below. 1. What forms at divergent boundaries? 2. Sea floor spreading is an example of what type of boundary? 3. In a convergent boundary, what plate gets subducted? 4. What can result as a process of oceanic crust colliding with continental crust? 5. Which fault is the most well known transform boundary? 6. What can result as two plates transform past one another? Click on the and sing along! Click on the The Great Rift Valley forms what type of boundary? Click on the The Himalaya mountains form what type of boundary? Click on the The Aleutian Islands were formed because two ____________ plates converged. Click on the The famous rift valley found in Thingvellir National Park was created because of a _____________________ boundary.