5 Written Questions

1. Fossils
   Studies of ancient climate
   The geology (rocks) of continents
2. a layer of liquid metals that surround the inner core. the lower pressure allow's the metals to remain a liquid.
3. Continents spread apart at a divergent boundary.
   It forms when hot material rises from deep in the mantle.
   This heat causes the crust to bulge upward and the crust crakes as it is stretched and a rift valley forms.
4. Earth's layers formed as denser materials sank toward the center and the less dense materials rose toward the surface.
5. The island or landform farthest from the hot spot was formed first. As the plate moves, it carries the islands or landforms away from the hot spot; therefore, the ones first to form are the farthest away.

5 Matching Questions

1. Subduction
2. oceanic crust
3. Continental Drift
4. Explain how records of magnetic reversals show that plates move apart
5. What are the three types of boundaries?

1. a includes all the ocean floors. the crust is home to all life on Earth.
2. b Divergent boundary
   Convergent boundary
   Transform boundary
3. c The process by which an oceanic tectonic plate sinks under another plate into Earth's mantle
4. d A hypothesis made by Alfred Wegener that Earth's continents were once joined together in a single landmass and gradually moved or drifted apart.
5. e The farther away from the ridge, the older the record of reversals on both sides of the ridge. This shows that the plates move away from the center.

5 Multiple Choice Questions

1. includes all the continents and some major islands
   1. oceanic crust
   2. Continental Drift
   3. continental crust
   4. The crust
2. At transform boundaries
   1. When does folded crust form mountains?
   2. Where do two plates move past each other in opposite directions?
   3. Where do transform boundaries occur?
   4. Evidence for The Theory of Plate Tectonics
3. as plates move apart, new crust is built, forming mid-ocean ridges and rift valleys
   1. Divergent Boundaries
   2. Transform Boundaries
   3. Continental divergent boundaries
   4. Plate Boundary
4. made up of the curst and the very top of the mantle and is the most rigid of all layers.
   1. Outer core
   2. Inner Core
   3. Lithosphere
   4. Hot Spots
5. molten rock that rises through cracks in the crust, cools, and forms new oceanic crust.
   1. Sea-floor spreading
   2. Transform Boundary
   3. Ocean trenches
   4. Transform Boundaries

5 True/False Questions

1. When does folded crust form mountains? → When it is pushed up high

   True        False

2. Asthenosphere → a layer of liquid metals that surround the inner core. the lower pressure allow's the metals to remain a liquid.

   True        False

3. convection → a layer of liquid metals that surround the inner core. the lower pressure allow's the metals to remain a liquid.

   True        False

4. What happens in a magnetic reversal? → Earth's magnetic north and south poles switch places.

   True        False

5. Age of sea floor → Earth's thickest layer is made of hot rock that is less dense than the core

   True        False