GRADE 10: Q1.LESSON(PLATE bOUNDARIESSTRESS.pptx

GRADE 10: Q1.LESSON(PLATE bOUNDARIESSTRESS.pptx

1. LOOKING BACK!

2. CONVERGENT PLATE BOUNDARY TRANSFORM PLATE BOUNDARY DIVERGENT PLATE BOUNDARY TYPES OF PLATE BOUNDARIES

3. STRESS ON PLATE BOUNDARIES

4. OBJECTIVES describe the movement in each type of plate boundary; relate each type of plate with the stress on rocks;

5. When the plates are pulled or pushed together, stress occurs. Stress is the force applied on the rocks . Each type of movement on different plate boundaries go along with different types of stress. As the plates move away or toward each other, the rocks underneath is subjected to stress. Stress can cause a rock to change shape or to break.

6. When a rock bends without breaking, it folds . When the rock breaks, it fractures . Mountain building and earthquakes are some of the responses rocks to different stress that happened.

7. There are three types of stress related to the movement of plate boundaries. CONVERGENT DIVERGENT TRANSFORM COMPRESSION TENSION SHEAR

8. Elastic deformation happens when rocks returns to its original shape when the stress is removed Plastic deformation rocks that undergo stress and do not return to its original shape after stress was removed Fracture rocks under stress breaks

9. CONVERGENT PLATE BOUNDARY At convergent boundary, when rocks are squeeze together compression happens that causes rocks to fold or fracture .

10. DIVERGENT PLATE BOUNDARY divergent boundary undergoes tensional stress . When tensional stresses pull crust apart, it breaks into blocks that slide up and drop down along normal faults.

11. TRANSFORM PLATE BOUNDARY when forces act parallel to each other but in opposite direction, the stress is called shear . Shear stress causes two rocks to slide past each other. This is the stress that happens in transform plate boundary

12. TRANSFORM PLATE BOUNDARY The fracture is called joint . But if fractured rocks will have movement on one or both sides, the fracture is called fault .

13. There are three types of plate boundaries, namely; convergent, divergent and transform. Force acted on boundaries causes plates to move and is called as 1.____________. The type of force depends on the movement of the plates. Two plates that are 2._______________ each other is convergent plate boundary where the stress is called 3.____________. 4.______________stress usually happens at divergent plate boundary, where plates are 5._____________ from each other. 6. ____________ stress on the edges of plates that 7. ____________ with each other, is common in transform plate boundary. stress

14. STRESS MOUNTAIN RANGE ISLANDS TOWARD EACH OTHER AWAY FROM EACH OTHER TENSION RIDGE RIFT SHEAR FAULT BY SLIDING PAST TO EACH OTHER DO THIS!

15. references https://www.google.com/search?q=convergent+plate+boundaries+gif&tbm=isch&ved=2ahUKEwiok_3g8bPsAhVTA5QKHTpbAZUQ2-cCegQIABAA&oq=plate+boundaries+gif&gs_lcp=CgNpbWcQARgBMgIIADIGCAAQBRAeMgYIABAFEB4yBggAEAUQHjIGCAAQBRAeMgYIABAFEB4yBggAEAUQHjIGCAAQBRAeMgYIABAFEB4yBggAEAUQHjoKCAAQsQMQgwEQQzoHCAAQsQMQQzoICAAQsQMQgwE6BAgAEENQ8X9Y8aIBYMHIAWgAcAB4AIAB2gWIAd0HkgEFMy42LTGYAQCgAQGqAQtnd3Mtd2l6LWltZ8ABAQ&sclient=img&ei=xdSGX-icEdOG0AS6toWoCQ&bih=657&biw=1349&hl=en-GB#imgrc=TAr2yTEaDBWGzM Credit:Yt:D’Marianne https://www.google.com/search?q=PLATE+MOVING+GIF&hl=en-GB&sxsrf=ALeKk00OM8eKUQMwG9GsoOKJORIm6rDS-Q:1602676304193&source=lnms&tbm=isch&sa=X&ved=2ahUKEwiun7S-grTsAhWSGaYKHf7xCAUQ_AUoAXoECAwQAw&biw=1366&bih=657#imgrc=JqQ2Yf-AB1DpFM