Earth Layers Stations

What are the lithosphere and asthenosphere??? How do the layers of the Earth cause the plates to move? Lithosphere: Made of the Crust & Upper Mantle. Broken into tectonic plates! Asthenosphere: The layer of solid rock below the lithosphere that has so much pressure and heat the rocks can flow like a liquid. This causes the lithosphere plates to move. Convection Currents: Rising and sinking of hot rock (magma) due to differences in density or temperature.

Write it! Directions: Using the diagram and article in the folder, write how a skateboard would model plate movement. The following terms should be in your explanation: Lithosphere, Asthenosphere, Convection Currents. Make sure to explain what each part of the skateboard (wheels, board, circular motion of the wheels) would represent. You should use information from the reading to support your explanation!

Research it! Directions: Use the Earth Layers poster to fill in the temperature, state of matter, and thickness. Use the paragraphs in the textbook on Pg. 190- 193 to fill in composition. Mantle State of Matter? If completing at home, you may research online or go to the following website textbook using the login information: https://my.hrw.com/ Username: hilgefort1 Password: student

Watch it! Briefly explain how the Earth’s layers formed? Directions: Watch the following video and the answer the 3 questions below on your research sheet. https://www.youtube.com/watch?v=WwiiOjyfvAU Briefly explain how the Earth’s layers formed? Why is the inner core solid and the outer core is liquid even though the inner core is hotter? What layer is responsible for creating Earth’s magnetic field?

Read it! Directions: Read the article “How Do We Know About Earth’s Interior?” in the folder and answer the question below. Describe 2 methods that Scientists use to study the characteristics about the Earth’s layers.

Organize it! Must complete read it and research it before coming to station! Directions: Match each layer, to the picture, to the description. Try to do it without using your notes, and then use your notes to check it. Finally, raise your hand to have Ms. Hilgefort check and sign it.

Map it! Directions: Using the paragraph to the right, fill in the venn diagram on your worksheet to compare and contrast Continental and oceanic crust. There should be at least 3 differences (hint: compare the density, thickness, location, & composition) and 1 similarity

Label it! Directions: Use the definitions on your sheet to label the diagram. Use the word bank!

Assess it! Directions: Answer the 6 questions on your sheet. Check your answers using the answer key in the folder. If incorrect, analyze why the actual answer is correct.

Assess it! Density decreases and temperature decreases 1. The arrows shown in the asthenosphere represent the inferred slow circulation of the plastic mantle by a process called Insolation Convection Conduction Radiation 2. The graph below shows the percent by mass of elements of Earth’s crust. Each letter on the graph represents an element. Aluminum and iron Calcium and nitrogen Potassium and sodium Oxygen and silicon 3. What happens to the density and temperature of rock within Earth’s interior as depth increases? Density decreases and temperature decreases Density decreases and temperature increases Density increases and temperature increases Density increases and temperature decreases

Assess it! 4. Why does the oceanic crust sink beneath continental crust at a subduction boundary? The oceanic crust has a greater density The oceanic crust is pulled downward by Earth’s magnetic field The continental crust has a more basaltic composition The continental crust is pulled upward by Moon’s gravity 5. Most inferences about the characteristics of Earth’s mantle and core are based on The behavior of seismic waves in Earth’s interior Well drillings from Earth’s mantle and core Chemical changes in exposed and weathered metamorphic rocks Comparison between Moon rocks and Earth rocks 6.

Answer Key B Convection is the rising and sinking of material due to differences in density D Oxygen (47%) and Silicon (28%) are the main elements in the crust. C As you go from the crust to the core (depth increases), the temperature gets hotter (increases) and the density is greater (increases) A Objects (such as the oceanic crust) with a greater density sink below objects that are less dense (such as the continental crust) Scientists are able to determine the temperature, density, composition, and state of matter of the layers by studying the way that seismic waves (earthquake waves) bend through the layers The core is in the center of the Earth

Bellringer Take out Earth Layers Stations Worksheet Take out Science interactive notebook and turn to page #4

Brainstorm: Groups 3D MODEL: Your Model must: Be 3-dimensional (3D) Have 4 main layers and additional layers (see below) Be Neat, Complete, Creative, and Colorful Materials for 3-D Model: Be Creative! Recycled materials and other ideas are (cloth, paper mache, plastic bottles, etc…) encouraged to reduce cost and get extra credit. Common materials: Styrofoam ball, toothpicks, paper, and paint. ***If you need help getting materials or making the project YOU must speak with Ms. Hilgefort BEFORE Friday! Put all materials besides station sheet under your table. What materials does your group need to bring in by Wednesday to model the 4 main layers of the Earth? Write down in agendas what you (individually) need to bring You may bring in supplies to school Monday-Wednesday (due Thursday) Write down in agendas what you need to bring If you prefer to create the 3-D model as on your own at home, you may (just let Ms. Hilgefort and your group know today) When finished, start stations.

Bellringer Take out Earth Layers Stations Worksheet (research) Discuss as group what your goal to finish is today in class. You will be conferencing with Ms. Hilgefort today. Descriptions (4 notecards about each main layer). Use complete sentences- make the cards neat! Creative Short Story 3-D Model & Labels Begin on “Crust to Core- Earth Layers project” Project will be due on Friday.

Earth Layers Quiz: Friday Compare and contrast the Earth’s Layers Composition Temperature State of Matter Density Define the lithosphere, asthenosphere, and convection currents Compare and contrast the 2 types of crust Explain how scientists study earth’s layers

Parent Survey Due Monday Pride Points for anyone who turns it in tomorrow.