* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download Layers of the Earth and Atmosphere
Survey
Document related concepts
Schiehallion experiment wikipedia , lookup
Spherical Earth wikipedia , lookup
Plate tectonics wikipedia , lookup
Large igneous province wikipedia , lookup
History of Earth wikipedia , lookup
History of geomagnetism wikipedia , lookup
History of geology wikipedia , lookup
Mantle plume wikipedia , lookup
History of geodesy wikipedia , lookup
Age of the Earth wikipedia , lookup
Future of Earth wikipedia , lookup
Transcript
Name: ____________________________________ Class Period: ________ Layers of the Earth and Atmosphere We will be using the textbook to study the layers of the earth and its atmosphere. For layers of the Earth listed below, complete the data table using pages 230-232. We will also be drawing in the layers of the atmosphere. This data has been supplied for you. Layer Inner Core Average Depth 6400 km Temperature What Is It Made Of? 7200° C iron Description Solid made up of iron and nickel. It is under extreme pressure. Outer Core Lower Mantle Asthenosphere Upper Mantle Crust You will use a strip of calculator tape to complete a scale of the layers. Color the layers as indicated next to the name. On the scale, use 1 cm to equal 100 km. that means a layer that is 1200 km thick would equal 12 cm. (If a layer is less than 100 km use a part of a cm.) On this scale 10 km would equal 1 mm. You will need one meter of tape. One end of your tape will represent the center of the earth. Begin measuring there for the inner core. Earth and atmosphere layers Inner core Actual depth (km) 1300 km Model depth (cm and mm) 13 cm Outer Core 2200 km 22 cm Lower Mantle 2240 km 22.4 cm Asthenosphere 250 km 2.5 cm Upper Mantle 395 km 3.95 cm Crust 15 km 1.5 mm Troposphere 12 km 1.2 mm Stratosphere 38 km 3.8 mm Mesosphere 30 km 3.0 mm Ionosphere 470 km 4.7 cm Exosphere No specific depth Use 12.0 cm Use the following colors for your model: Inner Core – Dark Brown Outer Core – Orange Lower Mantle – Red Orange Asthenosphere - Red Upper Mantle – Light Brown Crust (Continental and Oceanic) – Green Troposphere – Yellow Stratosphere –Purple Mesosphere – Light Blue Ionosphere– Blue Exosphere – Scattered Blue Dots When you finish your model, answer the following questions on notebook paper using complete sentences. Staple your notebook paper to this sheet and turn in when you are finished. 1. What is the thickest layer of the earth? 2. What is the thinnest layer of the earth? 3. If you were to use an apple to represent the earth, what part of the apple would represent the earth’s crust? 4. How have scientists learned about the earth’s interior? 5. What layers make up the lithosphere? 6. What is the asthenosphere and why is it important? 7. Why is the inner core solid even though it is very hot? 8. What causes the Earth’s magnetic field? Layers of the Earth and Atmosphere We will be using the textbook to study the layers of the earth and its atmosphere. For layers of the Earth listed below, complete the data table using pages 230-232. We will also be drawing in the layers of the atmosphere. This data has been supplied for you. Layer Inner Core Average Depth Temperature What Is It Made Of? 6400 km 5100 km 7200° C 4300° C 2900 km 3700° C Rock Solid made up of iron and nickel. It is under extreme pressure. Liquid iron; as it moves it creates electric currents making Earth’s magnetic field. Largest part of Earth’s interior; very hot and flows slowly Hot rock More fluid than other parts of the mantle – like jelly; soft iron Iron and nickel Outer Core Lower Mantle 660 km Between Lower and Upper Mantle Asthenosphere 410 km Description Lower part of the lithosphere 870° C Rock 0° C Granite and Basalt Upper Mantle 15 km Crust Uppermost layer; cool so it cracks and breaks easily; floats on the mantle You will use a strip of calculator tape to complete a scale of the layers. Color the layers as indicated next to the name. On the scale, use 1 cm to equal 100 km. that means a layer that is 1200 km thick would equal 12 cm. (If a layer is less than 100 km use a part of a cm.) On this scale 10 km would equal 1 mm. You will need one meter of tape. One end of your tape will represent the center of the earth. Begin measuring there for the inner core. Earth and atmosphere layers Inner core Actual depth (km) 1300 km Model depth (cm and mm) 13 cm Outer Core 2200 km 22 cm Lower Mantle 2240 km 22.4 cm Asthenosphere 250 km 2.5 cm Upper Mantle 395 km 3.95 cm Crust 15 km 1.5 mm Troposphere 12 km 1.2 mm Stratosphere 38 km 3.8 mm Mesosphere 30 km 3.0 mm Ionosphere 470 km 4.7 cm Exosphere No specific depth Use 12.0 cm Use the following colors for your model: Inner Core – Dark Brown Outer Core – Orange Lower Mantle – Red Orange Asthenosphere - Red Upper Mantle – Light Brown Crust (Continental and Oceanic) – Green Troposphere – Yellow Stratosphere –Purple Mesosphere – Light Blue Ionosphere– Blue Exosphere – Scattered Blue Dots When you finish your model, answer the following questions on notebook paper using complete sentences. Staple your notebook paper to this sheet and turn in when you are finished. 1. What is the thickest layer of the earth? 2. What is the thinnest layer of the earth? 3. If you were to use an apple to represent the earth, what part of the apple would represent the earth’s crust? 4. How have scientists learned about the earth’s interior? 5. What layers make up the lithosphere? 6. What is the asthenosphere and why is it important? 7. Why is the inner core solid even though it is very hot? 8. What causes the Earth’s magnetic field?