4 Written Questions
3 Multiple Choice Questions
- a chain of mountains on the ocean floor that wind around earth.
- a gently sloping, shallow area of the ocean floor that extends outward from the edge of a continent
- mountains on the ocean floor that are completely underwater
3 True/False Questions
Plates → Hot, liquid substance that makes up part of the earth's mantle.
Magma → Major pieces that make up the Earth's outer layer
Sea floor spreading → a smooth, nearly flat region of the deep ocean floor