Name: ____________________________________ Date: ________________ Plate Tectonics Web Quest Introduction: A Web quest is a way for you to explore a topic, such as “Plate Tectonics” and find useful information to help you understand the topic. In this web quest, you will be visiting web sites containing information that will help you better understand the theory explaining the structure of the earth's crust and the many related phenomena resulting from the interaction of the rigid lithospheric plates as they move slowly over the putty-like underlying mantle. Directions: Using search engines (google, bing, duck, duck go, yahoo, ask, etc.) and the internet links provided to define the following vocabulary and answer the questions to learn more about the tectonic plates of the Earth. Plate Tectonics Vocabulary 1. Lithospheric Plates – 2. Plate Tectonics 3. Lithosphere – 4. Asthenosphere – 5. Continental Drift – 6. Seafloor Spreading – 7. Diverging Boundaries – 8. Sliding Boundaries – 9. Converging Boundaries - Using the internet links provided, answer the questions that follow: PLATE TECTONICS Go to: Plate Tectonics http://www.ducksters.com/science/earth_science/plate_tectonics.php Why does this website refer to the Earth as a “Land in Motion”? ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ What part of the Earth is moving? ____________________________________ What is the lithosphere made of? ____________________________________ What do we call the big chunks of the lithosphere that is moving? ______________________________________________________________ Most of the Earth is covered by seven major plates, and another eight or so minor plates. The seven major plates include the _________________, Antarctic, Eurasian, _______________________, South American, _____________________, and the Pacific plates. Some of the minor plates include the Arabian, Caribbean, Nazca, and Scotia plates. Here is a picture showing the major tectonic plates of the world. Circle the North American plate. That is where we live. What are the two main types of tectonic plates? ______________________________________ The movement of tectonic plates is most evident at the boundaries between the plates. What are three main types of boundaries? 1. 2. 3. A convergent boundary is where two tectonic plates push together. What types of geological activity can occur when two tectonic plates push together? ______________________________________________________________ ______________________________________________________________ ________________________________ A divergent boundary is one where two plates are getting pushed apart. How is new land formed between divergent boundaries? ______________________________________________________________ ______________________________________________________________ ________________________________ A transform boundary is one where two plates slide past each other. What is another name for a transform boundary? _______________________________________. What geological activity can occur there? _________________________________________________________ PLATE TECTONICS, EARTHQUAKES AND VOLCANOES Tectonic Plates, Earthquakes and volcanoes http://www.pbslearningmedia.org/asset/ess05_int_tectonic/ Click on “Plate Boundaries”. Describe what you see. ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ ________________________________________________ Now, click on “Volcanoes”. What do you notice about where most of the volcanoes are located? ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ What do you notice about where the earthquake’s epicenter has been identified? ______________________________________________________________ ______________________________________________________________ ______________________________________________________________ Volcanoes Volcanoes - http://www.ducksters.com/science/volcanoes.php What is a volcano? ___________________________________________________________________ ___________________________________________________________________ Magma and Lava When rock beneath the Earth's surface gets really hot, it becomes molten or liquid. What do we call the liquid earth below the earth’s surface? ___________________________. Once the magma erupts to the surface through a volcano, it's called ________________. What do we call rock that has formed form hardened lava? _______________________. Activity A volcano can be active, dormant, or _______________. An active volcano is one that _____________________________________________. A dormant volcano is one that ____________________________________________. An extinct volcano is one that ____________________________________________. Types of Volcanoes What are the four types of volcanoes? 1. 2. 3. 4. Continue on next two pages….. Using the internet, define each type of volcano and draw a picture of each type of volcano. Cinder cones - _______________________________________________________ ___________________________________________________________________ Composite volcanoes - __________________________________________________ ___________________________________________________________________ Shield volcanoes - _____________________________________________________ ___________________________________________________________________ Lava domes - ________________________________________________________ _________________________________________________________________ Volcanoes of the Earth - http://volcanoes.travel-channels.com/