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CCA Science (8)
study questions
| Question | Answer |
|---|---|
| Continental drift hypothesis says that continents were once one large land mass called what? | Pangaea |
| The inner core of the earth is thought to be what? | Solid |
| The point deep in the earth at which an earthquake begins is called what? | Focus |
| The point on the earth's surface directly above the point at which the earthquake begins is the what? | Epicenter |
| The bending or buckling of rocks under great force produces what? | Fold |
| What is the instrument used to record the vibration caused by earthquakes? | Seismograph |
| What is the earth's outer layer of rock? | Crust |
| According to the theory of plate tectonics, earthquakes and volcanoes are far more likely to at the edges of what? | Plates |
| The channel in a volcano through which gases, ash and molten rock are ejected from the earth's interior is called what? | Vent |
| An underground tunnel formed when the surface of a large lawa flow hardens before the lava beneath is called what? | Lava tunnel |
| The earth's crust is thinnest beneath what? | Oceans |
| What is the name of the theory that states that rocks spring back to a position of little or no strain at the moment of an earthquake, causing vibrations in the earth's crust? | Elastic rebound theory |
| What is motlen rock beneath the surface of the earth? | Magma |
| What do you call a volcano that has erupted in the last 50 years? | Active Volcano |
| What do you call a volcano that has not erupted in the last 50 years, but may erupt again? | Dormant Volcano |
Created by:
AnnetteBudd
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