1. LT: I am learning how convection current works. The purpose is to identify how particle movement affects the mantle. Today I will learn how convection current cycles within the mantle. Warm-up: What is an example of convection currents happening in your life? CW: Use notes and demo to explain how the mantle flows. HW: Complete “How the mantle flows” descriptive writing page. Language Goal! I can use the vocabulary words mantle, core, crust, density, lithosphere, oceanic crust, continental crust, and convection current when describing the mantle movement.

2. O Lithosphere: The outer part of the earth, consisting of the crust and upper mantle, approximately 62 mi. thick. The solid portion of the earth.

3. O Asthenosphere: The upper part of the Earth's mantle, extending from a depth of about 46.5 mi to about 124 mi. The asthenosphere lies beneath the lithosphere and consists of partially molten rock

4. Correct questions from reading 1.2 O The movement of energy from a warmer object to a cooler object is called? The movement of energy from a warmer object to a cooler object is called heat transfer. O What is convection? Convection is heat transfer by the movement of currents within a fluid these heated particles of fluid begin to flow transferring heat from one part of the fluid to another. O Heat transfer by convection is caused by differences of ? and density within a fluid. Heat transfer by convection is caused by differences of temperature and density within a fluid. O A measure of how much mass there is in a volume of a substance is? Density is a measure of how much mass there is in a volume of a substance.

5. Correct questions from reading 1.2 O Circle the letter of the sentence that describes what happens to a fluid when its temperature increases. a. Its particles occupy less space. b. Its density decreases. c. Its particles move more slowly. d. Its particles settle together more closely. When temperatures increases in a fluid the particles density decreases. O What three factors set convection currents in motion? The three factors that set convection current into motion are the 1) heating and cooling of liquid, 2) the changing of fluid’s density and 3) the force of gravity. O What happens to convection currents when the liquid or gas is no longer heated? When liquid or gas are no longer heated in convection current the flow will stop and the current will eventually disappear.

6. Before we go on what is density? The amount of particles within a given space/ amount of volume.

7. This particle arrangement is more dense or less dense? MORE

8. This particle arrangement is more dense or less dense? LESS

9. This particle arrangement is dense increasing or decreasing? increasing

10. This particle arrangement is dense increasing or decreasing? decreasing

11. 8. Complete the graphic organizer to show the relationships among heat, movement, and density in mantle rock. A. Particles occupy less space. B. Particles move less and density increases. C. Particles occupy more space. D. Mantle rock is being heated. E. Particles move more and density decreases.

12. Correct questions from reading 1.2 O Why is convection current within the mantle shown as a cycle? Convection current within the mantle is shown as a cycle because the flow of hot magma rises and once cooled this magma sinks and the process starts all over again due to the heat of the outer core. O Is the following sentence true or false? Explain your reasoning to support your answer. O The heat source for the convection currents in the mantle is the sun.

13. Convection Current O A convection current is the flow that transfers heat within a fluid. Convection currents are located in the asthenosphere in boiling water and lots of other places..

14. Vocabulary words you should know O Plate Boundaries O Plate Tectonics O Earthquake O Volcano O Continental Crust O Oceanic Crust O Mantle O Inner Core O Outer Core O Lithosphere O Asthenosphere

15. HW: write a clear description of “How the Mantle Flows”. You should use as many words from the word bank. Your writing should be organized, chronological and neat. Any questions?

16. LT: I am learning how convection current works. The purpose is to identify how particle movement affects our lives. Today I will learn how convection current cycles. Warm-up: Describe the atoms within the demonstration by using a science sentence. (Beginning, middle, and end) CW: How does a lava lamp flow? HW: Complete the Sematic Feature Analysis of the mantle and a lava lamp sheet. Language Goal! I can use the vocabulary words mantle, core, crust, and convection current when connecting the earth to a lava lamp. Concept Goal!!! I can use particle movement words … increase density, decrease density, expands, contracts, increase energy, decrease energy, cools down and heats up.

22. How does a lava lamp work? Write down the different parts of the lava lamp you see… Think: What causes the “Mantle - lava” to cycle within the earth, within a lava lamp? On your lava lamp paper create and explain the convection current flow of solutions.

23. Use the following partial arrangement descriptions to describe your lava lamp. Greater distance between partials Reduced distance between partials Rises – goes up Sinks- goes down Density increases Density decreases Occupies more space Occupies less space Increases energy Decreases energy Heats up Cools down Has gravitational force Closest to a heat source Furthest from a heat source

24. Assignment: Complete the Semantic Feature Analysis of the mantle and a lava lamp. If you have a question on a row just place a “?” question mark there and we will discuss it tomorrow. Please do not guess ….. If you do not know we will work on it tomorrow…. We need to understand how and why!!!

25. Directions: Complete the matrix by using an “X” within the rows of features that apply to each concept. Concepts of particle arrangement, mantle and lava lamp positions are found on the left. Greater distance between particles Reduced distance between particles Rises - goes up Sinks - goes down Density increases Density decreases Occupies more space Occupies less space Increases energy Decreases energy Heats up Cools down Has gravitational force Closest to a heat source Furthest from a heat source When particles occupy little space When particles occupy more space When particles move real fast When particles move real slow At the top of the mantle At the bottom of the mantle At the top of a lava lamp At the bottom of a lava lamp Convection Current is…..

26. LT: I am learning how convection current works. The purpose is to identify how particle movement affects our lives. Today I will synthesize how convection current affects the lithosphere. Warm-up: What are the forces you remember applying to your milky way bar?.. CW: Lithosphere and convection current HW: complete writing Language Goal! I can use the vocabulary words mantle, core, crust, and convection current when connecting the earth to a lava lamp. Concept Goal!!! I can use particle movement words … increase density, decrease density, expands, contracts, increase energy, decrease energy, cools down and heats up.

27. The lithosphere and convection current. Why do particles space out? Why do particles come close together? Why do particles rise? Why do particles sink? Where is the most energy? Where is the least energy? What does energy do to atoms?

28. The lithosphere and convection current. Hot Chocolate Mantle Convection Demonstration What is the hot chocolate? How did the hot chocolate change? What caused the hot chocolate to move?

29. Assessment writing Write an explanation of how the lava lamp and Earth layers are similar. Explain what the convection current is and how convection current affects the lithosphere. These answers should be very detailed and clear and come up with as many comparisons as possible. You can also include ways that the two are different. Mantle Outer Core Lithosphere Particles Continental Crust Oceanic Crust Gravity Flow Convection current Density increases Sink Rise Density decreases Asthenosphere Temperature Heating and cooling More space Less space Increase Energy Decrease energy Density decreases Density increases Particles occupy less space Particles occupy more space Gravitational force Closest to a energy source Farther from a energy source