1. 1.Enter the classroom silently 2.Write homework down in agenda (45 sec) Earth’s Layers Worksheet 3.Objective, learner profile, and DO NOW 4.Wait silently for instructions. 7 min AGENDA DO NOW: KWL Chart Objective(s): SWBAT create and label a structural model of the Earth’s chemical and physical layers. Feb 29 th / March 1st Learner Profile - Inquirers

2. K What you know W What you want to know L What you learned. KWL Chart – Do Now 5 min Silently fill in the KWL chart in your packet

3. BrainPop Video 1.How do we know what the inside of the Earth is made of? 2.What are the three basic layers of the Earth. 3.What layer do we live on? 4.What part makes up the bulk of the Earth’s mass? 5 min

4. When it all began… 4.5 billion years ago, the Earth was in a fluid state. As the Earth began to cool, the materials began to separate because of their densities. What do you think happened to the more dense materials during the separation? What about the less dense materials?

5. When it all began… This separation of materials created the layers we know exist within the Earth today!

6. Why does the Earth have layers? Stop and Jot

7. When it all began… Scientists have found that the best way to classify these layers is in two ways – the chemical composition and the physical properties. How might we describe the chemical composition? What would be some physical properties?

8. Chemical or Physical? The thickness of a layer. Physical

9. Chemical or Physical? The temperature of a layer. Physical

10. Chemical or Physical? The elements the layer is made of. Chemical

11. Chemical or Physical? The state of matter of the layer. Physical

12. Chemical Composition When classifying the layers by their chemical composition, there are three distinct layers. The crust, the mantle, and the core. CRUST MANTLE CORE Follow along on pages 273-276

13. Crust CRUST The layer we live on. Found on the outside of the Earth. Made up of lighter elements. Oxygen Silicon Aluminum Calcium CRUST Follow along on pages 273-276

14. Mantle MANTLE Found in the middle of the Earth. Made up of elements with more density than the crust. Oxygen Silicon Magnesium Iron CRUST MANTLE Follow along on pages 273-276

15. Core CORE Found in the very center of the Earth. Made up of the most dense elements. Iron Nickel CRUST MANTLE CORE Follow along on pages 273-276

16. Example We can think of these layers like a hard boiled egg or an apple. What do you think would be considered the crust? What do you think would be considered the mantle? What do you think would be considered the core?

17. Physical Properties When classifying the layers by their physical properties, there are five distinct layers. The lithosphere, the asthenosphere, the mantle, the outer core, and the inner core. Follow along on pages 273-276

18. The Lithosphere LITHOSPHERE Includes the crust and the uppermost portion of the mantle. Thickness of the Crust: 5-70 km State of Matter: Solid LITHOSPHERE Follow along on pages 273-276

19. The Asthenosphere ASTHENOSPHERE Lies just below the lithosphere. Does not extend very deep into the upper mantle. State of Matter: Solid – but has a plastic feel that allows it to flow like silly putty. LITHOSPHERE ASTHENOSPHERE Follow along on pages 273-276

20. The Mantle MANTLE Thickness: 2900 km Temperature: 2800-3200 °C State of Matter: Solid – but has a plastic feel that allows it to flow like silly putty. LITHOSPHERE ASTHENOSPHERE MANTLE Follow along on pages 273-276

21. The Outer Core OUTER CORE Thickness: 2250 km Temperature: 4000-5000 °C State of Matter: Liquid LITHOSPHERE ASTHENOSPHERE MANTLE OUTER CORE Follow along on pages 273-276

22. The Inner Core INNER CORE Thickness: 1280 km Temperature: 6000 °C State of Matter: Solid LITHOSPHERE ASTHENOSPHERE MANTLE OUTER CORE INNER CORE Follow along on pages 273-276

23. Guided Practice We’re going to make a foldable to portray the layers of the Earth that you’ll be able to take with you and use as a reference. Everyone at your desk should be broken down into 1’s and 2’s. Everyone at your table will have different jobs so that everyone is not doing the same thing at the same time. 20 min

24. Guided Practice 20 min 1’s2’s Color the layers (5 min)Cut out the layers (5 min) Glue into the foldable (5 min) Color the layers (5 min)

25. Independent Practice Independently, you will choose a RAFT assignment to complete. RAFT stands for Role, Audience, Format, and Topic. You will have about 30 minutes to complete this assignment. GET CREATIVE! 30 min

26. Independent Practice 30 min RoleAudienceFormatTopic Inner CoreOther LayersSongStop pressing on me! DensityScientistsPoemHow does density affect the interior layers of the Earth? Earth’s Interior Travel Agency Vacation goersVacation Manual Best places to be in Earth’s interior You only need to pick one assignment to complete. You may use any extra materials during this time. GET CREATIVE!

27. Complete the exit ticket silently. TURN IN AS YOU LEAVE!!!!! You may pack up your things. Exit Ticket

28. STOP Cards SSummarize: Summarize the day’s lesson and what we learned. TTrait: What IB trait relates to the lesson? OObjective: Re-state in your own words and say whether or not we met that objective for the day. PPurpose: What was the purpose of this lesson?