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 ReviewEach 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 Law2. One of the solid rocket boosters on the shuttle produces 1.25 x 107 N of force which accelerates its 5.71 x 105 kg mass to a velocity of 21. Newton’s Second Law

Quick Review3. 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 Law4. 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 101 .

Earth and SpaceLesson 6.2 – The Lithosphere

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.

I can describe the physical nature of the lithosphere including the density, composition, and location of continental and oceanic crust. (4a)

Guided Practice 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 lithosphere2. 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

I-N-D-E-P-E-N-D-E-N-TDo you know what that

means?

Exit Ticket(5 questions)

1. What is the outermost layer of the Earth called?

A.MantleB.AsthenosphereC.LithosphereD.Inner Core

2. Which layer, the lithosphere or asthenosphere, is more dense?

A. LithosphereB. AsthenosphereC. They have the same densityD. Sometimes the lithosphere is more

dense while other times the asthenosphere is more dense.

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 LithosphereB. Continental LithosphereC. Mountainous LithosphereD. Both oceanic and continental

lithosphere

4. Which type of lithosphere, oceanic or continental, is less dense?

A. OceanicB. ContinentalC. They have the same densityD. 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. Both are hot, liquid inner layers of earth.B. Both are solid, cool layers of earth close to

the surface.C. The lithosphere is rigid and less dense than

the hot and liquid asthenosphere.D. The asthenosphere is rigid and less dense

than the hot and liquid lithosphere.