Download Mid ocean ridge worksheet

Mid-Ocean Ridges
1. In what year did scientists discover mid-ocean ridges? 213
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2. Summarize how scientists were able to map out the ocean floor. 213
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3. What process was discovered the 1960s that helped explain how the
continents drifted? 214
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4. What does seafloor spreading mean? 214
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5. Why does magma rise up through the cracks in the crust at a mid-ocean
ridge? 214
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6. As the seafloor continues to spread apart what happens to the older
oceanic crust? 214
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7. Why is the seafloor smooth farther away from the ridge? 215
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8. Summarize why the continents move. 215
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9. Is a mid-ocean ridge a convergent, divergent, or a transform boundary?
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