This document provides information about plate tectonics and plate boundaries: 1. It lists the four main types of plate boundaries as convergent, divergent, transform, and subduction boundaries. 2. Convergent boundaries occur when two plates collide, such as in mountain building. 3. Divergent boundaries happen when two plates spread apart, forming mid-ocean ridges where new crust is created through seafloor spreading. 4. The document provides key vocabulary about plate tectonics and asks questions to check students' understanding of where different landforms are located relative to plate boundaries.

1. 9/23/11 A-DayLEQ: How do plate boundaries change the shape of our earth? (complete sentences) 1. List the four different types of plate boundaries 2. What do we call two colliding tectonic plates? 3. What do we call two tectonic plates that are spreading apart? 4. What do we call two plates that are sliding past one another? 5. What is the difference between a subduction boundary and a transform boundary?

2. Classroom Culture: -turtle video -Why is it important that we work together to reach our goal in science this year? -What is one thing you can do to help your classmates reach THEIR goals?

3. TRACK YOUR PROGRESS!

4. Today’s LEQ: How do plate boundaries change the shape of our earth? By the end of today, you should be able to… 1. DESCRIBE the different ways that tectonic plate boundaries create geologic change.

5. KEY VOCABULARY 16. Rift Valley 17. Mid-Ocean Ridge 18. Seafloor Spreading 19. Trench

6. RIFT VALLEY SEAFLOOR SPREADING MID-OCEAN RIDGE

7. (draw picture here!) The gap between divergent plates

9. RIFT VALLEY

10. (draw picture here!) The gap between divergent plates Magma rises, cools, and creates crust! (draw picture here!)

11. NEW CRUST!

13. (draw picture here!) The gap between divergent plates Magma rises, cools, and creates crust (draw picture here!) Long, short, underwater mountains (draw picture here!)

17. RIFT VALLEY

18. Seafloor spreading

19. MID OCEAN RIDGE

20. SUBDUCTION ZONES VOLCANO TRENCH

23. INDEPENDENT PRACTICE Where would you expect to find mountain ranges? Where would you find a mid-ocean ridge? Where would you find an ocean trench? Where would you expect to find seafloor spreading? Where would you expect to find volcanoes? Where would you expect to find new crust being made? Which of the following areas would you expect to have the LEAST geologic activity?

24. Simon Says…With our new vocab!

25. Plate Boundary—Charades!