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Earth internal and overall structure worksheet with diagrams
Typology: Exercises
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The internal structure of the Earth
outer layer oceans centre crust hot skin magnetic liquid 5000
Use information from the following website: to color in the earth and label http://www.learner.org/interactives/dynamicearth/structure.html
Name: __________________________________________ Date: _______________
Introduction: A Webquest is a way for you to explore a topic, such as “The Layers of the Earth” and find useful information to help you understand the topic. In this webquest, you will be visiting web sites that will help you better understand the Earth's interior, continental drift, plate tectonics and how these topics fit together. Directions: Using search engines (google, bing, duck duck go, yahoo, ask, etc.) and the internet links provided answer the questions below to learn more about the layers of the earth. Earth's Interior Earth is many thousand kilometers in depth. If you could travel deep into the Earth's surface you would find it contains three main layers: the crust, the mantle and the core. To learn more about the layers of Earth, search the internet and click on the following links and answer the questions that follow: Read the Definitions. Using the internet, answer the questions that follow: crust The crust is thinner under the oceans. - the rigid, rocky outer surface of the Earth, composed mostly of basalt and granite.
Question: What type(s) of rock(s) are basalt and granite? Question: How were these rocks formed? inner core - the solid iron-nickel center of the Earth that is very hot and under great pressure. Question: What is the inner core made of? mantle iron, aluminum, and calcium. Convection (heat) currents carry heat from the hot inner mantle - a rocky layer located under the crust - it is composed of silicon, oxygen, magnesium, to the cooler outer mantle. Question: The mantle is divided into two sections. What do we call the top half section of the mantle?
Question: What do we call the bottom half section of the mantle? Question: The mantle the thickest layer of the Earth. How thick is it? Question: What types of currents are formed in the mantle? outer core - the molten iron-nickel layer that surrounds the inner core. Question: What is the outer core made of?
Now, go to the following link: Composition of the Earth (http://www.ducksters.com/science/composition_of_the_earth.php)
Composition of the Earth:
Now go to: (http://www.harcourtschool.com/activity/science_up_close/606/deploy/interface.html) Earth Layers Interface
Click START Click on the diagram to learn more about the Earth’s Layers. Answer the questions. First, click on the Crust.