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Transcript
Quiz Answers AB– CDEFG- Crust Upper Mantle Asthenosphere Lower Mantle Outer Core Inner Core Lithosphere Layers of the Earth Earth’s Layers–Radius 6,400km Crust (15km)–we live on, cool, brittle Upper Mantle (410km) – holds crust, contains a thin, hot magma layer Lithosphere (0-410km) Asthenosphere (410-660km) Soft weak zone where rock is more fluid due to temp. and press. Lower Mantle (2900km) –MOST of Earth’s interior, very hot and slow flowing Outer Core (5,100km) – liquid, made of metal Inner Core (6,400km) – solid, made of metal, hot Waves Seismic waves – vibrations that travel through the Earth’s interior Two most prominent: P-Waves S-Waves P-Waves Primary Powerful (move through solid and liquid) Faster Forward and backward motion Picture thanks to usgs.gov S-Waves Secondary Solid – cannot move through liquid Side-to-side motion Slower Shadow zone – told us that the Earth’s interior is liquid Today’s Assignment Read pages 226 – 228 Answer Questions 1 – 10 in your notes Can work in groups if you can handle it. ________________________________ QUIZ on Wednesday 10/27/2010 over Earth’s Interior Convection (turn to page 236) Convection – is the transfer of heat Heat rises The heat rises from the center of the Earth and moves the plates that rest on the mantle Density Density – heaviness of an object with volume Continental crust – floats higher, so is less dense Oceanic Crust – floats lower, so more dense Read Chapter 10.3 (You Do NOT have to complete questions at the end of the section) Draw and Label a Diagram of Earth’s Layers Define a seismic wave. What is the difference between P and S waves? What is the shadow zone? What does the S-wave shadow zone tell us about the interior of Earth? Name the type of Rock that makes up the ocean floor. Name the two kinds of rock that make up the continents. What is convection? What is the continental crust? What is the oceanic crust?