Explain what causes the Earth to drift apart? Explain. Semester 2 Week 12 and week 13 ( April 10-14, 2017) Learning Target By the end of class, I will be able to identify and describe the earth’s composition by doing the simulation lab on “Building Pangea” and complete the lab activity worksheet Essential Question Explain what causes the Earth to drift apart? Explain. Agenda Reading Fluency Rate DOF Four-Square Vocabulary Earth’s composition - Pangaea lab Homework Charge your I-pad fully everyday before coming to class Complete all assigned classwork on Canvas

Reading Fluency Rate Week 12 CPO Focus on Life Science Textbook Page 245 par 1 - 76 par 2 - 74 Page 246 par 3 - 48 par 4 - 55

DOF – The Composition of the Earth The Earth is divided into three layers- the crust, mantle and core. The crust is the outermost layer ranging from 5 to 100 kilometers thick. It is made up of a layer called the lithosphere. The lithosphere (rock sphere)is not a single layer but is made up pieces called tectonic plates. The mantle is the layer of the Earth between the crust and the core. It is about 2,900 km thick and contains most of the Earth’s mass. The layer that makes up the mantle is called the asthenosphere(weak sphere), a soft layer of mantle in which pieces of the lithosphere moves. This layer is made up of solid rock that flows very slowly, like putty and tend to lose their shape when stressed. The mesosphere(middle sphere) is the strong lower part of the mantle. The core extends from the bottom of the mantle to the center of the Earth. It has a diameter of 6,787 km and it’s 33 percent of the Earth’s mass. The core of the Earth is divided into two parts. The outer core is the liquid layer and surrounds the inner core. The inner core is a solid, dense center of our planet.

II. Concept Map (sample) What is the text structure of the paragraph? I. Text Structure II. Concept Map (sample) III. Summary

Composition of the Earth Vocabulary - Week 12

crust Pangea mantle lithosphere Sem 2 Week 12 : The Composition of the Earth Definition: Pictograph: Definition: Pictograph: Pangea (n) lithosphere (n) Word Works: Sentence: Sentence: Word Works: Definition: Pictograph: Definition: Pictograph: crust (n) mantle (n) Word Works: Sentence: Word Works: Sentence:

Friendly Definition Pictograph Wordwork 7-up Sentence - an ancient supercontinent that broke apart to form today’s continents. Pangea Pangea reminds me of… because… Alfred Wegener theorized and named the initial supercontinent Pangaea. Connection

Friendly Definition Pictograph Wordwork 7-up Sentence - the outer most, rigid layer of the earth that consists of the crust and the rigid, uppermost part of the mantle lithosphere lithosphere reminds me of… because… The Earth’s lithosphere is broken into continental plates that move over time. Connection

Friendly Definition Pictograph Wordwork 7-up Sentence - the thin, outermost layer of the Earth, or the uppermost part of the lithosphere crust Crust reminds me of… because… The crust is the outermost solid shell of a rocky planet. Connection

mantle the layer of the earth between the crust and the core Friendly Definition Pictograph Wordwork 7-up Sentence the layer of the earth between the crust and the core mantle mantel remind me of… because… The composition of the Earth’s mantle is: oxygen, magnesium, silicon, iron, calcium, aluminum, sodium and potassium. Connections -

core Plate tectonics mesosphere asthenosphere Sem 2 Week 12 : The Composition of the Earth Definition: Pictograph: Definition: Pictograph: Plate tectonics (n) asthenosphere (n) Word Works: Sentence: Word Works: Sentence: Definition: Pictograph: Definition: Pictograph: core (n) mesosphere (n) Word Works: Sentence: Word Works: Sentence:

The asthenosphere lies in the upper portion of the Earth’s mantle. Friendly Definition Pictograph Wordwork 7-up Sentence the partially molten layer of the upper mantle on which the tectonic plates of the lithosphere move. asthenosphere asthenosphere remind me of… because… The asthenosphere lies in the upper portion of the Earth’s mantle. Connections

Friendly Definition Pictograph Wordwork 7-up Sentence - Huge pieces of the lithosphere that move around on top plate tectonics Plate tectonics reminds me of… because… . Connection

Mesosphere is in the mantle region of the Earth. Friendly Definition Pictograph Wordwork 7-up Sentence the rigid, lower part of the mantle between the asthenosphere and the outer core mesosphere mesosphere remind me of… because… Mesosphere is in the mantle region of the Earth. Connections -

core The core of the Earth is solid and liquid iron. Friendly Definition Pictograph Wordwork 7-up Sentence the central, spherical part of the Earth below the mantle core Core remind me of… because… The core of the Earth is solid and liquid iron. Connections