Download d45 plate boundaries ppt

D45 Plate Boundaries
D45 Boundary Background
• The map on p D42 shows the locations of
earthquakes and volcanoes on Earth.
• Many of the most active volcanoes are on the
edges of the Pacific Ocean, the “Ring of Fire”.
• The theory of plate tectonics helps explain this
• CHALLENGE QUESTION: How does plate
tectonics explain the locations of earthquakes,
volcanoes and mountain ranges?
D45 Plate Motion Vocabulary
• Convergent: plates colliding (mountains)
• Divergent: plates dividing (volcanoes)
• Transform: plates sliding along (earthquakes)
• Subduction: one plate sliding under another
D45 Boundary Reading
• In the textbook read pages D43 – D46.
• Answer questions on the D45 Lab worksheet.
D45 Boundary Analysis: Date________
Name_____________________ Hr___
• Answer using complete paragraphs:
1. Describe two ways that the movement of
lithospheric plates can form mountains.
2. Draw and label a Transform boundary,
Divergent boundary, & Convergent boundary.
3. Which type of rock would you expect to find
along a divergent plate boundary: igneous,
metamorphic, or sedimentary? Explain.