8.3 Causes of Plate Movements pgs. 180 -181
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Before you read define the Key terms from the section NOT from glossary:
1. Mantle Convection –
2. Ridge Push –
3. Slab Pull –
After you read answer these key concept questions in
COMPLETE SENTENCES:
4. Diagram Mantle convection. Be sure to include the terms: low density, high density,
convection cell, cooler rock
5. – 6. How does mantle convection hypothesis explain plate movements alond divergent
boundaries and subduction boundaries?
7. – 8. Diagram Ridge push. Be sure to include the terms: less dense, more dense, buoyant,
cools, less dense, older rock and gravity.
9. The term ridge push is misleading. What other name could be used to describe the force.
10. – 11. Diagram slab pull. Be sure to include the terms: denser, heavier, colder, less dense,
subduct