1. Mouths are quiet. 2.Homework in your folder. 3. Begin the quick review section of your notes. 4.Raise your hand if you need something. Quick Review Each of the following situations illustrates one of Newton’s Laws using the space shuttle. List which one. 1. The rocket’s engines exert a downward force on the ground but the rocket moves upward. Newton’s Third Law 2. One of the solid rocket boosters on the shuttle produces 1.25 x 107 N of force which accelerates its m 5 5.71 x 10 kg mass to a velocity of 21 . s Newton’s Second Law Quick Review mi . hr 3. During liftoff, it reaches a speed of 17,180 It continues at this speed while in orbit because no outside forces are acting on it. Newton’s First Law 4. During liftoff, the shuttle’s engines produce 5.255 x 106 N of force. If the 1.1 X 105 kg at liftoff, estimate its acceleration: 5 x m 1 10 . 𝑠2 Lesson 6.2 – The Lithosphere I can describe the physical nature of the lithosphere including the density, composition, and location of continental and oceanic crust. (4a) 1. The Earth’s crust is also referred to as the lithosphere. 2. The lithosphere is very rigid. It will not bend but will instead crack. I can describe the physical nature of the lithosphere including the density, composition, and location of continental and oceanic crust. (4a) 3. The lithosphere is less dense than the asthenosphere. A. You can remember this because less dense substances will float on top of denser substances. Since the lithosphere is on top of the asthenosphere it must be less dense. I can describe the physical nature of the lithosphere including the density, composition, and location of continental and oceanic crust. (4a) 4. There are two types of lithosphere: a. Oceanic lithosphere is found underneath the oceans. b. Continental lithosphere makes up the continents of Earth. I can describe the physical nature of the lithosphere including the density, composition, and location of continental and oceanic crust. (4a) 5. Oceanic lithosphere is more dense than continental lithosphere because of the types of minerals that make up the rock. I can describe the physical nature of the lithosphere including the density, composition, and location of continental and oceanic crust. (4a) 6. The thickest part of the lithosphere is found in mountain ranges. a. The tallest mountain on Earth is Mt. Everest. This is also the location on Earth where the lithosphere is the thickest. WORK WITH US…NOT AHEAD OF US! I can describe the physical nature of the lithosphere including the density, composition, and location of continental and oceanic crust. (4a) 1. Which part of the lithosphere is the thinnest? Oceanic lithosphere 2. Which of these describes the lithosphere? A. Topmost solid part of Earth in which crust is located B. Middle liquid, flowing layer of Earth on which crust floats C. Middle plastic, flowing layer of Earth on which the asthenosphere floats D. Topmost semisolid part of Earth in which magma chambers for volcanoes form Do you know what that means? (5 questions) 1. What is the outermost layer of the Earth called? A. Mantle B. Asthenosphere C. Lithosphere D. Inner Core 2. Which layer, the lithosphere or asthenosphere, is more dense? Lithosphere B. Asthenosphere C. They have the same density D. Sometimes the lithosphere is more dense while other times the asthenosphere is more dense. A. 3. What type of lithosphere would be found at the Himalaya Mountains, the Great Plains of the U.S. and the Savannahs of Kenya? A. Oceanic Lithosphere B. Continental Lithosphere C. Mountainous Lithosphere D. Both oceanic and continental lithosphere 4. Which type of lithosphere, oceanic or continental, is less dense? A. B. C. D. Oceanic Continental They have the same density Sometimes oceanic is less dense and other times continental is less dense. 5. Which of the following correctly compares the lithosphere and the asthenosphere? A. B. C. D. Both are hot, liquid inner layers of earth. Both are solid, cool layers of earth close to the surface. The lithosphere is rigid and less dense than the hot and liquid asthenosphere. The asthenosphere is rigid and less dense than the hot and liquid lithosphere.