Monday Starting Line Directions: Enter the classroom, log onto Blackboard and click on the Starting Line for today. Answer the questions below on the Google Form. You have 4 minutes to do this. Which type of boundary happens when 2 plates move toward each other? Which type of boundary happens when 2 plates move away from each other? Which type of boundary happens when 2 plates slide past each other?

Monday Starting Line Directions: Enter the classroom, log onto Blackboard and click on the Starting Line for today. Answer the questions below on the Google Form. You have 4 minutes to do this. Convergent Divergent Transform

Announcements Homework Check: None Test next week over Chapters 2, 10, and 11!

Earth and Space Science Unit 4: Plate Tectonics and Mountains Daily Objective: I can describe and explain how our continents move, change, and the supercontinent cycle.

Notebook Notes Directions: In your document, write the following information in this order on the LEFT SIDE. (Your Name) Mr. Swisher Earth and Space Science _____ (Period) 11/7/2016

Notebook Notes Directions: In your document, write the following information in this order in the CENTER in BOLD. 10.3 Changing Continents

Tectonic Plates

HOW the Tectonic Plates Move The tectonic plates move on the asthenosphere due to a process called convection. Convection: Warm material rises, cool material sinks Happens in the mesosphere Material is heated by the core, becomes less dense, and rises to the top of the mesosphere. Then, it cools down, becomes more dense, and sinks to the bottom of the mesosphere.

HOW the Tectonic Plates Move 1 Ridge Push: As new magma comes out of the rift, the new, cooling magma slides down the mid-ocean ridge and pushes the older, cooled magma away. 1 2 2 2 Slab Pull: Older, cooled lithosphere far away from the mid-ocean ridge begins to sink (subduct) into the asthenosphere (under younger lithosphere). Happens in the mesosphere Material is heated by the core, becomes less dense, and rises to the top of the mesosphere. Then, it cools down, becomes more dense, and sinks to the bottom of the mesosphere.

Changing Continents Our 7 continents can change over time. Rifting: When continents break apart Gaining Terrane: When more lithosphere (crust and mantle) is added to a continent Example: Tibet

Changing Continents When the continents rift or gain terrane, this can change… the climate (long-term weather patterns) of a continent. the life forms that exist on each continent.

Supercontinent Cycle Supercontinent: One large continent that includes all 7 of our current continents Ex. Pangaea Superocean: One large ocean that includes all 5 of our current oceans Ex. Panthalassa Supercontinent Cycle: The process by which supercontinents form and break apart over millions of years.

Supercontinent Cycle

Supercontinent Cycle Based on this cycle, it is possible for another supercontinent to form in several million years! Tectonic plates move about 2 cm (1 inch) a year and are helping push the continents back together.

Quick Questions What would be some positives to reuniting Pangaea? What would be some negatives to reuniting Pangaea?

Tectonic Plates Packet