Download Study Guide Questions for Continents Change Position Over Time:

Study Guide Questions on Plates move apart:
1. Define the following vocabulary: divergent boundary, convergent boundary,
transform boundary, rift valley, magnetic reversal, hot spot
2. What features are found at divergent boundaries in the ocean?
Mid-ocean ridges and rift valleys
3. What creates a rift valley?
As the sea floor spreads, it creates a gap between the ridges
4. What does the globe show?
The location of the Mid-Atlantic Ridge
5. What happens in a magnetic reversal?
Earth’s magnetic north and south poles switch place
6. Where is each magnetic reversal recorded?
In the sea-floor rock
7. Do rift valleys grow wider or narrower as magma rises?
wider
8. What happens to the valley floor as the rift widens?
Thins and sinks
9. What is slowly happening to the Red Sea?
It is getting wider
10. What is a hot spot?
Volcanic activity that develops above a plume, which is a stream of magma
rising from the mantle