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Plate Tectonics
| Question | Answer |
|---|---|
| _______ is the process by which the oceanic plate slides downhill under the force of gravity, occurs at mid ocean rdiges | Ridge push |
| Hot material from deep within the Earth rises while cooler material near the surface sinks, appears to cause the movement of the Earth's tectonic plates. What is this? | Convection |
| What is the process in which an oceanic plate sinks and pulls the rest of the tectonic plate with it? | Slab pull |
| What is the name of the fault in which the hanging wall move UP relative to the footwall? | reverse fault |
| What is the process by which new oceanic lithosphere is created as older materials are moved away? | Sea floor spreading |
| The soft layer of the mantle on which pieces of the lithosphere move is called? | asthenosphere |
| Continental mountain rages are usually associated with what type of boundary? | Convergent |
| Anticlines and synclines are the result of____. | Folding |
| What layer is responsible for the Earth's magnetic field? | Outer core |
| How do scientists know about the structure of the Earth? | Indirect evidence |
| Mid-Ocean ridges are formed along what type of boundary? | divergent |
| Earth's oceanic crust is _______ than the continental crust. | thinner but denser |
| The type of mountain involving huge sections of the Earth's crust being pushed into anticlines and synclines is a ______ mountain. | folded |
| What are the three types of convergent boundaries? | continental-continental, oceanic-oceanic, continental-oceanic |
| what makes up the most of the Earth's mass? | mantle |
| Pangea broke into two big pieces called______. | Ganwana and Laurasia |
| What type of fault moves down relative to the foot wall? | normal fault |
| What type of stress occurs when two tectonic plates collide? | compression |
| What type of fold is shaped like an arch? | anticline |
| Name the type of fault that results when rocks are pulled apart due to tension. | Normal Fault |
| What is a striation? | scratches in rocks caused by glaciers |
| What type of tectonic plate boundary has a subduction zone? | Convergent |
| What is the difference between continental and oceanic crust? | Continental- older, thicker, less dense, granite. Oceanic- younger, thinner, more dense, basalt |
| How do scientists know about the structure of the Earth? | Scientists use indirect evidence. They study Earthquakes- they travel through Earth |
| What are the 4 puzzling occurrences or pieces of evidence that help explain the theory of continental drift? | 1. continental fit, 2. plant and animal fossil evidence, 3. glacial evidence, 4. landforms |
| What are three possible forces that explain how tectonic plates move? | 1. Ridge push, 2. Slab Pull, 3. Convection |
Created by:
Miss. Porrovecchio
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